137569379 has 2 divisors, whose sum is σ = 137569380. Its totient is φ = 137569378.

The previous prime is 137569363. The next prime is 137569381. The reversal of 137569379 is 973965731.

It is a strong prime.

It is an emirp because it is prime and its reverse (973965731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137569379 - 2⁴ = 137569363 is a prime.

Together with 137569381, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (137569319) 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, 68784689 + 68784690.

It is an arithmetic number, because the mean of its divisors is an integer number (68784690).

Almost surely, 2^137569379 is an apocalyptic number.

137569379 is a deficient number, since it is larger than the sum of its proper divisors (1).

137569379 is an equidigital number, since it uses as much as digits as its factorization.

137569379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1071630, while the sum is 50.

The square root of 137569379 is about 11728.9973569781. The cubic root of 137569379 is about 516.2268535098.

The spelling of 137569379 in words is "one hundred thirty-seven million, five hundred sixty-nine thousand, three hundred seventy-nine".