1314378139 has 2 divisors, whose sum is σ = 1314378140. Its totient is φ = 1314378138.

The previous prime is 1314378133. The next prime is 1314378173. The reversal of 1314378139 is 9318734131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1314378139 - 2⁷ = 1314378011 is a prime.

It is a super-2 number, since 2×1314378139² = 3455179784562206642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1314378133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657189069 + 657189070.

It is an arithmetic number, because the mean of its divisors is an integer number (657189070).

Almost surely, 2^1314378139 is an apocalyptic number.

1314378139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1314378139 is an equidigital number, since it uses as much as digits as its factorization.

1314378139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 1314378139 is about 36254.3533799736. The cubic root of 1314378139 is about 1095.4017802371.

The spelling of 1314378139 in words is "one billion, three hundred fourteen million, three hundred seventy-eight thousand, one hundred thirty-nine".