137255305 has 8 divisors (see below), whose sum is σ = 179679744. Its totient is φ = 99822000.

The previous prime is 137255281. The next prime is 137255309. The reversal of 137255305 is 503552731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 137255305 - 2¹⁵ = 137222537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137255309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1247721 + ... + 1247830.

It is an arithmetic number, because the mean of its divisors is an integer number (22459968).

Almost surely, 2^137255305 is an apocalyptic number.

It is an amenable number.

137255305 is a deficient number, since it is larger than the sum of its proper divisors (42424439).

137255305 is a wasteful number, since it uses less digits than its factorization.

137255305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495567.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 137255305 is about 11715.6009235549. The cubic root of 137255305 is about 515.8337016436.

The spelling of 137255305 in words is "one hundred thirty-seven million, two hundred fifty-five thousand, three hundred five".