137464739 has 2 divisors, whose sum is σ = 137464740. Its totient is φ = 137464738.

The previous prime is 137464729. The next prime is 137464741. The reversal of 137464739 is 937464731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137464739 is a prime.

Together with 137464741, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137464739.

It is not a weakly prime, because it can be changed into another prime (137464729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68732369 + 68732370.

It is an arithmetic number, because the mean of its divisors is an integer number (68732370).

Almost surely, 2^137464739 is an apocalyptic number.

137464739 is a deficient number, since it is larger than the sum of its proper divisors (1).

137464739 is an equidigital number, since it uses as much as digits as its factorization.

137464739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 44.

The square root of 137464739 is about 11724.5357690614. The cubic root of 137464739 is about 516.0959336784.

The spelling of 137464739 in words is "one hundred thirty-seven million, four hundred sixty-four thousand, seven hundred thirty-nine".