137945459 has 2 divisors, whose sum is σ = 137945460. Its totient is φ = 137945458.

The previous prime is 137945449. The next prime is 137945477. The reversal of 137945459 is 954549731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137945459 - 2²⁰ = 136896883 is a prime.

It is not a weakly prime, because it can be changed into another prime (137945449) 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, 68972729 + 68972730.

It is an arithmetic number, because the mean of its divisors is an integer number (68972730).

Almost surely, 2^137945459 is an apocalyptic number.

137945459 is a deficient number, since it is larger than the sum of its proper divisors (1).

137945459 is an equidigital number, since it uses as much as digits as its factorization.

137945459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 47.

The square root of 137945459 is about 11745.0184759327. The cubic root of 137945459 is about 516.6968368554.

The spelling of 137945459 in words is "one hundred thirty-seven million, nine hundred forty-five thousand, four hundred fifty-nine".