1374365639 has 2 divisors, whose sum is σ = 1374365640. Its totient is φ = 1374365638.

The previous prime is 1374365581. The next prime is 1374365653. The reversal of 1374365639 is 9365634731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1374365639 - 2⁸ = 1374365383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1374365593 and 1374365602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1374365689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687182819 + 687182820.

It is an arithmetic number, because the mean of its divisors is an integer number (687182820).

Almost surely, 2^1374365639 is an apocalyptic number.

1374365639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374365639 is an equidigital number, since it uses as much as digits as its factorization.

1374365639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 47.

The square root of 1374365639 is about 37072.4377266993. The cubic root of 1374365639 is about 1111.8190121634.

The spelling of 1374365639 in words is "one billion, three hundred seventy-four million, three hundred sixty-five thousand, six hundred thirty-nine".