145412553 has 32 divisors (see below), whose sum is σ = 233960832. Its totient is φ = 79142400.

The previous prime is 145412539. The next prime is 145412557. The reversal of 145412553 is 355214541.

It is not a de Polignac number, because 145412553 - 2⁸ = 145412297 is a prime.

It is a super-2 number, since 2×145412553² = 42289621139955618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145412553.

It is not an unprimeable number, because it can be changed into a prime (145412557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11293 + ... + 20453.

It is an arithmetic number, because the mean of its divisors is an integer number (7311276).

Almost surely, 2^145412553 is an apocalyptic number.

145412553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145412553 is a deficient number, since it is larger than the sum of its proper divisors (88548279).

145412553 is a wasteful number, since it uses less digits than its factorization.

145412553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9225.

The product of its digits is 12000, while the sum is 30.

The square root of 145412553 is about 12058.7127422457. The cubic root of 145412553 is about 525.8565645226.

The spelling of 145412553 in words is "one hundred forty-five million, four hundred twelve thousand, five hundred fifty-three".