1020745895 has 32 divisors (see below), whose sum is σ = 1347917760. Its totient is φ = 737510400.

The previous prime is 1020745883. The next prime is 1020745907. The reversal of 1020745895 is 5985470201.

It is an interprime number because it is at equal distance from previous prime (1020745883) and next prime (1020745907).

It is not a de Polignac number, because 1020745895 - 2⁸ = 1020745639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 583412 + ... + 585158.

It is an arithmetic number, because the mean of its divisors is an integer number (42122430).

Almost surely, 2^1020745895 is an apocalyptic number.

1020745895 is a deficient number, since it is larger than the sum of its proper divisors (327171865).

1020745895 is a wasteful number, since it uses less digits than its factorization.

1020745895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 1020745895 is about 31949.1141504737. The cubic root of 1020745895 is about 1006.8680206383.

The spelling of 1020745895 in words is "one billion, twenty million, seven hundred forty-five thousand, eight hundred ninety-five".