1020372065 has 8 divisors (see below), whose sum is σ = 1228774848. Its totient is φ = 813412080.

The previous prime is 1020372053. The next prime is 1020372077. The reversal of 1020372065 is 5602730201.

It is an interprime number because it is at equal distance from previous prime (1020372053) and next prime (1020372077).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020372065 - 2⁴ = 1020372049 is a prime.

It is a Duffinian number.

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, 359141 + ... + 361970.

It is an arithmetic number, because the mean of its divisors is an integer number (153596856).

Almost surely, 2^1020372065 is an apocalyptic number.

It is an amenable number.

1020372065 is a deficient number, since it is larger than the sum of its proper divisors (208402783).

1020372065 is an equidigital number, since it uses as much as digits as its factorization.

1020372065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721399.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 1020372065 is about 31943.2632177741. The cubic root of 1020372065 is about 1006.7450898048.

The spelling of 1020372065 in words is "one billion, twenty million, three hundred seventy-two thousand, sixty-five".