137700128 has 12 divisors (see below), whose sum is σ = 271097190. Its totient is φ = 68850048.

The previous prime is 137700127. The next prime is 137700179. The reversal of 137700128 is 821007731.

It can be written as a sum of positive squares in only one way, i.e., 91623184 + 46076944 = 9572^2 + 6788^2 .

It is a super-2 number, since 2×137700128² = 37922650502432768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 137700128.

It is not an unprimeable number, because it can be changed into a prime (137700127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2151533 + ... + 2151596.

Almost surely, 2^137700128 is an apocalyptic number.

It is an amenable number.

137700128 is a deficient number, since it is larger than the sum of its proper divisors (133397062).

137700128 is an equidigital number, since it uses as much as digits as its factorization.

137700128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303139 (or 4303131 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 137700128 is about 11734.5697833368. The cubic root of 137700128 is about 516.3903462226.

Adding to 137700128 its reverse (821007731), we get a palindrome (958707859).

The spelling of 137700128 in words is "one hundred thirty-seven million, seven hundred thousand, one hundred twenty-eight".