1349926139 has 2 divisors, whose sum is σ = 1349926140. Its totient is φ = 1349926138.

The previous prime is 1349926121. The next prime is 1349926141. The reversal of 1349926139 is 9316299431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1349926139 - 2²⁴ = 1333148923 is a prime.

Together with 1349926141, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1349926093 and 1349926102.

It is not a weakly prime, because it can be changed into another prime (1349926169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674963069 + 674963070.

It is an arithmetic number, because the mean of its divisors is an integer number (674963070).

Almost surely, 2^1349926139 is an apocalyptic number.

1349926139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1349926139 is an equidigital number, since it uses as much as digits as its factorization.

1349926139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 47.

The square root of 1349926139 is about 36741.3410070999. The cubic root of 1349926139 is about 1105.1892932060.

The spelling of 1349926139 in words is "one billion, three hundred forty-nine million, nine hundred twenty-six thousand, one hundred thirty-nine".