1012783775 has 6 divisors (see below), whose sum is σ = 1255851912. Its totient is φ = 810227000.

The previous prime is 1012783769. The next prime is 1012783781. The reversal of 1012783775 is 5773872101.

It is an interprime number because it is at equal distance from previous prime (1012783769) and next prime (1012783781).

It is not a de Polignac number, because 1012783775 - 2²² = 1008589471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20255651 + ... + 20255700.

It is an arithmetic number, because the mean of its divisors is an integer number (209308652).

Almost surely, 2^1012783775 is an apocalyptic number.

1012783775 is a deficient number, since it is larger than the sum of its proper divisors (243068137).

1012783775 is an equidigital number, since it uses as much as digits as its factorization.

1012783775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40511361 (or 40511356 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 1012783775 is about 31824.2639349286. The cubic root of 1012783775 is about 1004.2432278840.

The spelling of 1012783775 in words is "one billion, twelve million, seven hundred eighty-three thousand, seven hundred seventy-five".