97511120 has 160 divisors (see below), whose sum is σ = 275982336. Its totient is φ = 31334400.

The previous prime is 97511107. The next prime is 97511131. The reversal of 97511120 is 2111579.

It is a self number, because there is not a number n which added to its sum of digits gives 97511120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 711692 + ... + 711828.

Almost surely, 2^97511120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97511120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137991168).

97511120 is an abundant number, since it is smaller than the sum of its proper divisors (178471216).

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

97511120 is a wasteful number, since it uses less digits than its factorization.

97511120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 97511120 is about 9874.7718960997. The cubic root of 97511120 is about 460.2757011400.

Adding to 97511120 its reverse (2111579), we get a palindrome (99622699).

The spelling of 97511120 in words is "ninety-seven million, five hundred eleven thousand, one hundred twenty".