1012776125 has 16 divisors (see below), whose sum is σ = 1265082624. Its totient is φ = 809491600.

The previous prime is 1012776113. The next prime is 1012776143. The reversal of 1012776125 is 5216772101.

It is not a de Polignac number, because 1012776125 - 2⁴ = 1012776109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012776091 and 1012776100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167912 + ... + 173838.

It is an arithmetic number, because the mean of its divisors is an integer number (79067664).

Almost surely, 2^1012776125 is an apocalyptic number.

It is an amenable number.

1012776125 is a deficient number, since it is larger than the sum of its proper divisors (252306499).

1012776125 is an equidigital number, since it uses as much as digits as its factorization.

1012776125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7309 (or 7299 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 1012776125 is about 31824.1437433908. The cubic root of 1012776125 is about 1004.2406993812.

The spelling of 1012776125 in words is "one billion, twelve million, seven hundred seventy-six thousand, one hundred twenty-five".