1012775145 has 32 divisors (see below), whose sum is σ = 1737936000. Its totient is φ = 502055424.

The previous prime is 1012775143. The next prime is 1012775147. The reversal of 1012775145 is 5415772101.

It is an interprime number because it is at equal distance from previous prime (1012775143) and next prime (1012775147).

It is not a de Polignac number, because 1012775145 - 2¹ = 1012775143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012775143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18420 + ... + 48629.

It is an arithmetic number, because the mean of its divisors is an integer number (54310500).

Almost surely, 2^1012775145 is an apocalyptic number.

1012775145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1012775145 is a deficient number, since it is larger than the sum of its proper divisors (725160855).

1012775145 is a wasteful number, since it uses less digits than its factorization.

1012775145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67129.

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 1012775145 is about 31824.1283462721. The cubic root of 1012775145 is about 1004.2403754675.

The spelling of 1012775145 in words is "one billion, twelve million, seven hundred seventy-five thousand, one hundred forty-five".