90155032 has 32 divisors (see below), whose sum is σ = 192430080. Its totient is φ = 39196960.

The previous prime is 90154993. The next prime is 90155033. The reversal of 90155032 is 23055109.

It is a junction number, because it is equal to n+sod(n) for n = 90154988 and 90155006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90155033) 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 7 ways as a sum of consecutive naturals, for example, 20248 + ... + 24295.

It is an arithmetic number, because the mean of its divisors is an integer number (6013440).

Almost surely, 2^90155032 is an apocalyptic number.

90155032 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

90155032 is an abundant number, since it is smaller than the sum of its proper divisors (102275048).

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

90155032 is a wasteful number, since it uses less digits than its factorization.

90155032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44583 (or 44579 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 90155032 is about 9495.0003686151. Note that the first 3 decimals coincide. The cubic root of 90155032 is about 448.3976459873.

The spelling of 90155032 in words is "ninety million, one hundred fifty-five thousand, thirty-two".