137253257208 has 48 divisors (see below), whose sum is σ = 372186087000. Its totient is φ = 45694653120.

The previous prime is 137253257161. The next prime is 137253257209. The reversal of 137253257208 is 802752352731.

137253257208 is a `hidden beast` number, since 1 + 3 + 72 + 5 + 3 + 2 + 572 + 0 + 8 = 666.

It is a super-2 number, since 2×137253257208² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137253257209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1116883 + ... + 1233666.

Almost surely, 2^137253257208 is an apocalyptic number.

137253257208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

137253257208 is an abundant number, since it is smaller than the sum of its proper divisors (234932829792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137253257208 is a wasteful number, since it uses less digits than its factorization.

137253257208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351372 (or 2351365 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 137253257208 in words is "one hundred thirty-seven billion, two hundred fifty-three million, two hundred fifty-seven thousand, two hundred eight".