1012919039 has 4 divisors (see below), whose sum is σ = 1105002600. Its totient is φ = 920835480.

The previous prime is 1012919009. The next prime is 1012919053. The reversal of 1012919039 is 9309192101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1012919039 - 2²⁰ = 1011870463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012919009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46041764 + ... + 46041785.

It is an arithmetic number, because the mean of its divisors is an integer number (276250650).

Almost surely, 2^1012919039 is an apocalyptic number.

1012919039 is a deficient number, since it is larger than the sum of its proper divisors (92083561).

1012919039 is an equidigital number, since it uses as much as digits as its factorization.

1012919039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92083560.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 1012919039 is about 31826.3890348874. The cubic root of 1012919039 is about 1004.2879336783.

The spelling of 1012919039 in words is "one billion, twelve million, nine hundred nineteen thousand, thirty-nine".