81052874 has 32 divisors (see below), whose sum is σ = 146036736. Its totient is φ = 32986800.

The previous prime is 81052861. The next prime is 81052919. The reversal of 81052874 is 47825018.

81052874 = T₁₄₄ + T₁₄₅ + ... + T₇₈₇.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47789 + ... + 49455.

It is an arithmetic number, because the mean of its divisors is an integer number (4563648).

Almost surely, 2^81052874 is an apocalyptic number.

81052874 is a deficient number, since it is larger than the sum of its proper divisors (64983862).

81052874 is a wasteful number, since it uses less digits than its factorization.

81052874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 81052874 is about 9002.9369652353. The cubic root of 81052874 is about 432.7689956812.

The spelling of 81052874 in words is "eighty-one million, fifty-two thousand, eight hundred seventy-four".