108987522 has 32 divisors (see below), whose sum is σ = 249547392. Its totient is φ = 31085184.

The previous prime is 108987517. The next prime is 108987523. The reversal of 108987522 is 225789801.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (108987523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26518 + ... + 30350.

It is an arithmetic number, because the mean of its divisors is an integer number (7798356).

Almost surely, 2^108987522 is an apocalyptic number.

108987522 is an abundant number, since it is smaller than the sum of its proper divisors (140559870).

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

108987522 is a wasteful number, since it uses less digits than its factorization.

108987522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 108987522 is about 10439.7089039877. The cubic root of 108987522 is about 477.6673893922.

The spelling of 108987522 in words is "one hundred eight million, nine hundred eighty-seven thousand, five hundred twenty-two".