137929369 has 2 divisors, whose sum is σ = 137929370. Its totient is φ = 137929368.

The previous prime is 137929333. The next prime is 137929409. The reversal of 137929369 is 963929731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109998144 + 27931225 = 10488^2 + 5285^2 .

It is an emirp because it is prime and its reverse (963929731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137929369 - 2⁷ = 137929241 is a prime.

It is a super-2 number, since 2×137929369² = 38049021665476322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (137929069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68964684 + 68964685.

It is an arithmetic number, because the mean of its divisors is an integer number (68964685).

Almost surely, 2^137929369 is an apocalyptic number.

It is an amenable number.

137929369 is a deficient number, since it is larger than the sum of its proper divisors (1).

137929369 is an equidigital number, since it uses as much as digits as its factorization.

137929369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 551124, while the sum is 49.

The square root of 137929369 is about 11744.3334847066. Note that the first 3 decimals coincide. The cubic root of 137929369 is about 516.6767468492.

The spelling of 137929369 in words is "one hundred thirty-seven million, nine hundred twenty-nine thousand, three hundred sixty-nine".