137394679 has 2 divisors, whose sum is σ = 137394680. Its totient is φ = 137394678.

The previous prime is 137394671. The next prime is 137394683. The reversal of 137394679 is 976493731.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137394679 - 2³ = 137394671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137394671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68697339 + 68697340.

It is an arithmetic number, because the mean of its divisors is an integer number (68697340).

Almost surely, 2^137394679 is an apocalyptic number.

137394679 is a deficient number, since it is larger than the sum of its proper divisors (1).

137394679 is an equidigital number, since it uses as much as digits as its factorization.

137394679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 49.

The square root of 137394679 is about 11721.5476367244. The cubic root of 137394679 is about 516.0082413102.

The spelling of 137394679 in words is "one hundred thirty-seven million, three hundred ninety-four thousand, six hundred seventy-nine".