90246251 has 16 divisors (see below), whose sum is σ = 98288640. Its totient is φ = 82535040.

The previous prime is 90246199. The next prime is 90246263. The reversal of 90246251 is 15264209.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 90246251 - 2⁶ = 90246187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90246271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142706 + ... + 143336.

It is an arithmetic number, because the mean of its divisors is an integer number (6143040).

Almost surely, 2^90246251 is an apocalyptic number.

90246251 is a deficient number, since it is larger than the sum of its proper divisors (8042389).

90246251 is a wasteful number, since it uses less digits than its factorization.

90246251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 90246251 is about 9499.8026821614. The cubic root of 90246251 is about 448.5488248203.

The spelling of 90246251 in words is "ninety million, two hundred forty-six thousand, two hundred fifty-one".