90530451 has 12 divisors (see below), whose sum is σ = 142654200. Its totient is φ = 54866880.

The previous prime is 90530449. The next prime is 90530477. The reversal of 90530451 is 15403509.

90530451 is a `hidden beast` number, since 90 + 530 + 45 + 1 = 666.

It is not a de Polignac number, because 90530451 - 2¹ = 90530449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90530411) 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 11 ways as a sum of consecutive naturals, for example, 457126 + ... + 457323.

It is an arithmetic number, because the mean of its divisors is an integer number (11887850).

Almost surely, 2^90530451 is an apocalyptic number.

90530451 is a deficient number, since it is larger than the sum of its proper divisors (52123749).

90530451 is a wasteful number, since it uses less digits than its factorization.

90530451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914466 (or 914463 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 90530451 is about 9514.7491296408. The cubic root of 90530451 is about 449.0191822864.

The spelling of 90530451 in words is "ninety million, five hundred thirty thousand, four hundred fifty-one".