137965787 has 2 divisors, whose sum is σ = 137965788. Its totient is φ = 137965786.

The previous prime is 137965759. The next prime is 137965811. The reversal of 137965787 is 787569731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137965787 - 2²² = 133771483 is a prime.

It is not a weakly prime, because it can be changed into another prime (137965747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68982893 + 68982894.

It is an arithmetic number, because the mean of its divisors is an integer number (68982894).

Almost surely, 2^137965787 is an apocalyptic number.

137965787 is a deficient number, since it is larger than the sum of its proper divisors (1).

137965787 is an equidigital number, since it uses as much as digits as its factorization.

137965787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 53.

The square root of 137965787 is about 11745.8838322197. The cubic root of 137965787 is about 516.7222162033.

The spelling of 137965787 in words is "one hundred thirty-seven million, nine hundred sixty-five thousand, seven hundred eighty-seven".