1020165874 has 32 divisors (see below), whose sum is σ = 1965277440. Its totient is φ = 386033472.

The previous prime is 1020165871. The next prime is 1020165877. The reversal of 1020165874 is 4785610201.

It is an interprime number because it is at equal distance from previous prime (1020165871) and next prime (1020165877).

It is not an unprimeable number, because it can be changed into a prime (1020165871) 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, 117669 + ... + 126040.

It is an arithmetic number, because the mean of its divisors is an integer number (61414920).

Almost surely, 2^1020165874 is an apocalyptic number.

1020165874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1020165874 is a deficient number, since it is larger than the sum of its proper divisors (945111566).

1020165874 is a wasteful number, since it uses less digits than its factorization.

1020165874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243754.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1020165874 is about 31940.0355979764. The cubic root of 1020165874 is about 1006.6772727905.

The spelling of 1020165874 in words is "one billion, twenty million, one hundred sixty-five thousand, eight hundred seventy-four".