145514020369 has 27 divisors (see below), whose sum is σ = 163279264881. Its totient is φ = 129636385920.

The previous prime is 145514020363. The next prime is 145514020373. The reversal of 145514020369 is 963020415541.

The square root of 145514020369 is 381463.

It is a perfect power (a square), and thus also a powerful number.

145514020369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 73254129025 + 72259891344 = 270655^2 + 268812^2 .

It is a de Polignac number, because none of the positive numbers 2^k-145514020369 is a prime.

It is a super-2 number, since 2×145514020369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145514020363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 123211959 + ... + 123213139.

Almost surely, 2^145514020369 is an apocalyptic number.

145514020369 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

145514020369 is the 381463-rd square number.

145514020369 is the 190732-nd centered octagonal number.

It is an amenable number.

145514020369 is a deficient number, since it is larger than the sum of its proper divisors (17765244512).

145514020369 is an frugal number, since it uses more digits than its factorization.

145514020369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434 (or 1217 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 145514020369 in words is "one hundred forty-five billion, five hundred fourteen million, twenty thousand, three hundred sixty-nine".