109171510252 has 24 divisors (see below), whose sum is σ = 218351409696. Its totient is φ = 46785992448.

The previous prime is 109171510237. The next prime is 109171510289. The reversal of 109171510252 is 252015171901.

It is a happy number.

It is a super-2 number, since 2×109171510252² (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 7 ways as a sum of consecutive naturals, for example, 880788 + ... + 997060.

It is an arithmetic number, because the mean of its divisors is an integer number (9097975404).

Almost surely, 2^109171510252 is an apocalyptic number.

It is an amenable number.

109171510252 is an abundant number, since it is smaller than the sum of its proper divisors (109179899444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109171510252 is a wasteful number, since it uses less digits than its factorization.

109171510252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149817 (or 149815 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 34.

The spelling of 109171510252 in words is "one hundred nine billion, one hundred seventy-one million, five hundred ten thousand, two hundred fifty-two".