90368139 has 8 divisors (see below), whose sum is σ = 120960720. Its totient is φ = 60010496.

The previous prime is 90368137. The next prime is 90368143. The reversal of 90368139 is 93186309.

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

It is a cyclic number.

It is not a de Polignac number, because 90368139 - 2¹ = 90368137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90368097 and 90368106.

It is not an unprimeable number, because it can be changed into a prime (90368137) 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, 57834 + ... + 59375.

It is an arithmetic number, because the mean of its divisors is an integer number (15120090).

Almost surely, 2^90368139 is an apocalyptic number.

90368139 is a deficient number, since it is larger than the sum of its proper divisors (30592581).

90368139 is a wasteful number, since it uses less digits than its factorization.

90368139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117469.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 90368139 is about 9506.2158086170. The cubic root of 90368139 is about 448.7506729971.

The spelling of 90368139 in words is "ninety million, three hundred sixty-eight thousand, one hundred thirty-nine".