1374260639 has 2 divisors, whose sum is σ = 1374260640. Its totient is φ = 1374260638.

The previous prime is 1374260581. The next prime is 1374260663. The reversal of 1374260639 is 9360624731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1374260639 - 2²⁸ = 1105825183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1374260596 and 1374260605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1374260669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687130319 + 687130320.

It is an arithmetic number, because the mean of its divisors is an integer number (687130320).

Almost surely, 2^1374260639 is an apocalyptic number.

1374260639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374260639 is an equidigital number, since it uses as much as digits as its factorization.

1374260639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 1374260639 is about 37071.0215532294. The cubic root of 1374260639 is about 1111.7906975321.

The spelling of 1374260639 in words is "one billion, three hundred seventy-four million, two hundred sixty thousand, six hundred thirty-nine".