145344331252 has 12 divisors (see below), whose sum is σ = 256729707360. Its totient is φ = 71992986296.

The previous prime is 145344331211. The next prime is 145344331283. The reversal of 145344331252 is 252133443541.

It is a super-2 number, since 2×145344331252² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169794352 + ... + 169795207.

It is an arithmetic number, because the mean of its divisors is an integer number (21394142280).

Almost surely, 2^145344331252 is an apocalyptic number.

It is an amenable number.

145344331252 is a deficient number, since it is larger than the sum of its proper divisors (111385376108).

145344331252 is a wasteful number, since it uses less digits than its factorization.

145344331252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339589670 (or 339589668 counting only the distinct ones).

The product of its digits is 172800, while the sum is 37.

Adding to 145344331252 its reverse (252133443541), we get a palindrome (397477774793).

The spelling of 145344331252 in words is "one hundred forty-five billion, three hundred forty-four million, three hundred thirty-one thousand, two hundred fifty-two".