145337213522 has 8 divisors (see below), whose sum is σ = 218339674956. Its totient is φ = 72557321872.

The previous prime is 145337213507. The next prime is 145337213543. The reversal of 145337213522 is 225312733541.

145337213522 is digitally balanced in base 3, 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 2 ways, for example, as 129068466121 + 16268747401 = 359261^2 + 127549^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145337213522² (a number of 23 digits) contains 22 as substring.

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, 55640813 + ... + 55643424.

Almost surely, 2^145337213522 is an apocalyptic number.

145337213522 is a deficient number, since it is larger than the sum of its proper divisors (73002461434).

145337213522 is a wasteful number, since it uses less digits than its factorization.

145337213522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111284892.

The product of its digits is 151200, while the sum is 38.

The spelling of 145337213522 in words is "one hundred forty-five billion, three hundred thirty-seven million, two hundred thirteen thousand, five hundred twenty-two".