1345763139 has 16 divisors (see below), whose sum is σ = 2081296128. Its totient is φ = 757528992.

The previous prime is 1345763137. The next prime is 1345763147. The reversal of 1345763139 is 9313675431.

It is a happy number.

It is not a de Polignac number, because 1345763139 - 2¹ = 1345763137 is a prime.

It is a super-2 number, since 2×1345763139² = 3622156852582266642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1345763139.

It is not an unprimeable number, because it can be changed into a prime (1345763137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476832 + ... + 479645.

It is an arithmetic number, because the mean of its divisors is an integer number (130081008).

Almost surely, 2^1345763139 is an apocalyptic number.

1345763139 is a deficient number, since it is larger than the sum of its proper divisors (735532989).

1345763139 is an equidigital number, since it uses as much as digits as its factorization.

1345763139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956554.

The product of its digits is 204120, while the sum is 42.

The square root of 1345763139 is about 36684.6444578655. The cubic root of 1345763139 is about 1104.0520357549.

The spelling of 1345763139 in words is "one billion, three hundred forty-five million, seven hundred sixty-three thousand, one hundred thirty-nine".