137871739 has 2 divisors, whose sum is σ = 137871740. Its totient is φ = 137871738.

The previous prime is 137871689. The next prime is 137871743. The reversal of 137871739 is 937178731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137871739 - 2⁷ = 137871611 is a prime.

It is equal to p_7798681 and since 137871739 and 7798681 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (137871749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68935869 + 68935870.

It is an arithmetic number, because the mean of its divisors is an integer number (68935870).

Almost surely, 2^137871739 is an apocalyptic number.

137871739 is a deficient number, since it is larger than the sum of its proper divisors (1).

137871739 is an equidigital number, since it uses as much as digits as its factorization.

137871739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 46.

The square root of 137871739 is about 11741.8797047151. The cubic root of 137871739 is about 516.6047770937.

The spelling of 137871739 in words is "one hundred thirty-seven million, eight hundred seventy-one thousand, seven hundred thirty-nine".