90864151 has 4 divisors (see below), whose sum is σ = 103844752. Its totient is φ = 77883552.

The previous prime is 90864143. The next prime is 90864157. The reversal of 90864151 is 15146809.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15146809 = 257 ⋅58937.

It is a cyclic number.

It is not a de Polignac number, because 90864151 - 2³ = 90864143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90864157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6490290 + ... + 6490303.

It is an arithmetic number, because the mean of its divisors is an integer number (25961188).

Almost surely, 2^90864151 is an apocalyptic number.

90864151 is a deficient number, since it is larger than the sum of its proper divisors (12980601).

90864151 is a wasteful number, since it uses less digits than its factorization.

90864151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12980600.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 90864151 is about 9532.2689324211. The cubic root of 90864151 is about 449.5702085703.

The spelling of 90864151 in words is "ninety million, eight hundred sixty-four thousand, one hundred fifty-one".