1345253139 has 12 divisors (see below), whose sum is σ = 1944202000. Its totient is φ = 896346864.

The previous prime is 1345253137. The next prime is 1345253171. The reversal of 1345253139 is 9313525431.

It is not a de Polignac number, because 1345253139 - 2¹ = 1345253137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345253137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22864 + ... + 56685.

Almost surely, 2^1345253139 is an apocalyptic number.

1345253139 is a deficient number, since it is larger than the sum of its proper divisors (598948861).

1345253139 is a wasteful number, since it uses less digits than its factorization.

1345253139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81434 (or 81431 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 1345253139 is about 36677.6926618892. The cubic root of 1345253139 is about 1103.9125516548.

The spelling of 1345253139 in words is "one billion, three hundred forty-five million, two hundred fifty-three thousand, one hundred thirty-nine".