90361138 has 8 divisors (see below), whose sum is σ = 154904832. Its totient is φ = 38726196.

The previous prime is 90361133. The next prime is 90361157. The reversal of 90361138 is 83116309.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (90361133) 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 3 ways as a sum of consecutive naturals, for example, 3227170 + ... + 3227197.

It is an arithmetic number, because the mean of its divisors is an integer number (19363104).

Almost surely, 2^90361138 is an apocalyptic number.

90361138 is a deficient number, since it is larger than the sum of its proper divisors (64543694).

90361138 is a wasteful number, since it uses less digits than its factorization.

90361138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454376.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 90361138 is about 9505.8475687337. The cubic root of 90361138 is about 448.7390841612.

The spelling of 90361138 in words is "ninety million, three hundred sixty-one thousand, one hundred thirty-eight".