137545379 has 2 divisors, whose sum is σ = 137545380. Its totient is φ = 137545378.

The previous prime is 137545337. The next prime is 137545381. The reversal of 137545379 is 973545731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137545379 - 2¹⁶ = 137479843 is a prime.

Together with 137545381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137545319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68772689 + 68772690.

It is an arithmetic number, because the mean of its divisors is an integer number (68772690).

Almost surely, 2^137545379 is an apocalyptic number.

137545379 is a deficient number, since it is larger than the sum of its proper divisors (1).

137545379 is an equidigital number, since it uses as much as digits as its factorization.

137545379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 396900, while the sum is 44.

The square root of 137545379 is about 11727.9742069976. The cubic root of 137545379 is about 516.1968318943.

The spelling of 137545379 in words is "one hundred thirty-seven million, five hundred forty-five thousand, three hundred seventy-nine".