90155234 has 16 divisors (see below), whose sum is σ = 145824000. Its totient is φ = 41556240.

The previous prime is 90155231. The next prime is 90155237. The reversal of 90155234 is 43255109.

It is an interprime number because it is at equal distance from previous prime (90155231) and next prime (90155237).

It is a junction number, because it is equal to n+sod(n) for n = 90155197 and 90155206.

It is not an unprimeable number, because it can be changed into a prime (90155231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24017 + ... + 27515.

It is an arithmetic number, because the mean of its divisors is an integer number (9114000).

Almost surely, 2^90155234 is an apocalyptic number.

90155234 is a deficient number, since it is larger than the sum of its proper divisors (55668766).

90155234 is a wasteful number, since it uses less digits than its factorization.

90155234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4505.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 90155234 is about 9495.0110057861. The cubic root of 90155234 is about 448.3979808781.

The spelling of 90155234 in words is "ninety million, one hundred fifty-five thousand, two hundred thirty-four".