90251106 has 32 divisors (see below), whose sum is σ = 203268096. Its totient is φ = 26466000.

The previous prime is 90251099. The next prime is 90251107. The reversal of 90251106 is 60115209.

It is not an unprimeable number, because it can be changed into a prime (90251107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20010 + ... + 24101.

It is an arithmetic number, because the mean of its divisors is an integer number (6352128).

Almost surely, 2^90251106 is an apocalyptic number.

90251106 is an abundant number, since it is smaller than the sum of its proper divisors (113016990).

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

90251106 is a wasteful number, since it uses less digits than its factorization.

90251106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44158.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 90251106 is about 9500.0582103480. The cubic root of 90251106 is about 448.5568682403.

The spelling of 90251106 in words is "ninety million, two hundred fifty-one thousand, one hundred six".