137634305 has 4 divisors (see below), whose sum is σ = 165161172. Its totient is φ = 110107440.

The previous prime is 137634293. The next prime is 137634337. The reversal of 137634305 is 503436731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30118144 + 107516161 = 5488^2 + 10369^2 .

It is not a de Polignac number, because 137634305 - 2¹⁰ = 137633281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 13763426 + ... + 13763435.

It is an arithmetic number, because the mean of its divisors is an integer number (41290293).

Almost surely, 2^137634305 is an apocalyptic number.

It is an amenable number.

137634305 is a deficient number, since it is larger than the sum of its proper divisors (27526867).

137634305 is an equidigital number, since it uses as much as digits as its factorization.

137634305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27526866.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 137634305 is about 11731.7647862545. The cubic root of 137634305 is about 516.3080519897.

The spelling of 137634305 in words is "one hundred thirty-seven million, six hundred thirty-four thousand, three hundred five".