1939265113 has 2 divisors, whose sum is σ = 1939265114. Its totient is φ = 1939265112.

The previous prime is 1939265101. The next prime is 1939265131. The reversal of 1939265113 is 3115629391.

Together with next prime (1939265131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1939257369 + 7744 = 44037^2 + 88^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1939265113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1939265143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969632556 + 969632557.

It is an arithmetic number, because the mean of its divisors is an integer number (969632557).

Almost surely, 2^1939265113 is an apocalyptic number.

It is an amenable number.

1939265113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1939265113 is an equidigital number, since it uses as much as digits as its factorization.

1939265113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 40.

The square root of 1939265113 is about 44037.0879259744. The cubic root of 1939265113 is about 1247.0362023836.

The spelling of 1939265113 in words is "one billion, nine hundred thirty-nine million, two hundred sixty-five thousand, one hundred thirteen".