137670730 has 16 divisors (see below), whose sum is σ = 247959144. Its totient is φ = 55034560.

The previous prime is 137670719. The next prime is 137670737. The reversal of 137670730 is 37076731.

It can be written as a sum of positive squares in 4 ways, for example, as 116057529 + 21613201 = 10773^2 + 4649^2 .

It is not an unprimeable number, because it can be changed into a prime (137670737) 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, 19020 + ... + 25240.

Almost surely, 2^137670730 is an apocalyptic number.

137670730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137670730 is a deficient number, since it is larger than the sum of its proper divisors (110288414).

137670730 is a wasteful number, since it uses less digits than its factorization.

137670730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8441.

The product of its (nonzero) digits is 18522, while the sum is 34.

The square root of 137670730 is about 11733.3170927918. The cubic root of 137670730 is about 516.3535950491.

The spelling of 137670730 in words is "one hundred thirty-seven million, six hundred seventy thousand, seven hundred thirty".