137907970 has 8 divisors (see below), whose sum is σ = 248234364. Its totient is φ = 55163184.

The previous prime is 137907967. The next prime is 137907971. The reversal of 137907970 is 79709731.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 131400369 + 6507601 = 11463^2 + 2551^2 .

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

It is not an unprimeable number, because it can be changed into a prime (137907971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6895389 + ... + 6895408.

Almost surely, 2^137907970 is an apocalyptic number.

137907970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137907970 is a deficient number, since it is larger than the sum of its proper divisors (110326394).

137907970 is a wasteful number, since it uses less digits than its factorization.

137907970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13790804.

The product of its (nonzero) digits is 83349, while the sum is 43.

The square root of 137907970 is about 11743.4224142709. The cubic root of 137907970 is about 516.6500255942.

The spelling of 137907970 in words is "one hundred thirty-seven million, nine hundred seven thousand, nine hundred seventy".