1012778307 has 6 divisors (see below), whose sum is σ = 1462902012. Its totient is φ = 675185532.

The previous prime is 1012778287. The next prime is 1012778309. The reversal of 1012778307 is 7038772101.

It is a happy number.

It is not a de Polignac number, because 1012778307 - 2⁸ = 1012778051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012778309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56265453 + ... + 56265470.

It is an arithmetic number, because the mean of its divisors is an integer number (243817002).

Almost surely, 2^1012778307 is an apocalyptic number.

1012778307 is a deficient number, since it is larger than the sum of its proper divisors (450123705).

1012778307 is a wasteful number, since it uses less digits than its factorization.

1012778307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112530929 (or 112530926 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 36.

The square root of 1012778307 is about 31824.1780255202. The cubic root of 1012778307 is about 1004.2414205842.

The spelling of 1012778307 in words is "one billion, twelve million, seven hundred seventy-eight thousand, three hundred seven".