145269224164 has 27 divisors (see below), whose sum is σ = 256139040297. Its totient is φ = 72090722448.

The previous prime is 145269224161. The next prime is 145269224183. The reversal of 145269224164 is 461422962541.

The square root of 145269224164 is 381142.

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

It can be written as a sum of positive squares in only one way, i.e., 17019289764 + 128249934400 = 130458^2 + 358120^2 .

It is a super-2 number, since 2×145269224164² (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 (145269224161) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 113579677 + ... + 113580955.

Almost surely, 2^145269224164 is an apocalyptic number.

145269224164 is the 381142-nd square number.

It is an amenable number.

145269224164 is a deficient number, since it is larger than the sum of its proper divisors (110869816133).

145269224164 is an frugal number, since it uses more digits than its factorization.

145269224164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860 (or 1430 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The spelling of 145269224164 in words is "one hundred forty-five billion, two hundred sixty-nine million, two hundred twenty-four thousand, one hundred sixty-four".