137626369 has 2 divisors, whose sum is σ = 137626370. Its totient is φ = 137626368.

The previous prime is 137626351. The next prime is 137626439. The reversal of 137626369 is 963626731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136585969 + 1040400 = 11687^2 + 1020^2 .

It is a cyclic number.

It is not a de Polignac number, because 137626369 - 2⁹ = 137625857 is a prime.

It is a super-2 number, since 2×137626369² = 37882034888248322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (137626969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68813184 + 68813185.

It is an arithmetic number, because the mean of its divisors is an integer number (68813185).

Almost surely, 2^137626369 is an apocalyptic number.

It is an amenable number.

137626369 is a deficient number, since it is larger than the sum of its proper divisors (1).

137626369 is an equidigital number, since it uses as much as digits as its factorization.

137626369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 43.

The square root of 137626369 is about 11731.4265543454. The cubic root of 137626369 is about 516.2981283507.

The spelling of 137626369 in words is "one hundred thirty-seven million, six hundred twenty-six thousand, three hundred sixty-nine".