1939265131 has 2 divisors, whose sum is σ = 1939265132. Its totient is φ = 1939265130.

The previous prime is 1939265113. The next prime is 1939265143. The reversal of 1939265131 is 1315629391.

Together with previous prime (1939265113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1939265131 - 2²³ = 1930876523 is a prime.

It is a super-2 number, since 2×1939265131² = 7521498496624894322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1939265101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969632565 + 969632566.

It is an arithmetic number, because the mean of its divisors is an integer number (969632566).

Almost surely, 2^1939265131 is an apocalyptic number.

1939265131 is the 27852-nd centered pentagonal number.

1939265131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1939265131 is an equidigital number, since it uses as much as digits as its factorization.

1939265131 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1939265131 is about 44037.0881303476. The cubic root of 1939265131 is about 1247.0362062419.

The spelling of 1939265131 in words is "one billion, nine hundred thirty-nine million, two hundred sixty-five thousand, one hundred thirty-one".