90142874 has 16 divisors (see below), whose sum is σ = 143403048. Its totient is φ = 42350592.

The previous prime is 90142831. The next prime is 90142889. The reversal of 90142874 is 47824109.

It can be written as a sum of positive squares in 4 ways, for example, as 83083225 + 7059649 = 9115^2 + 2657^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23114 + ... + 26730.

Almost surely, 2^90142874 is an apocalyptic number.

90142874 is a deficient number, since it is larger than the sum of its proper divisors (53260174).

90142874 is a wasteful number, since it uses less digits than its factorization.

90142874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4369.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 90142874 is about 9494.3601153527. The cubic root of 90142874 is about 448.3774886223.

The spelling of 90142874 in words is "ninety million, one hundred forty-two thousand, eight hundred seventy-four".