137388970 has 8 divisors (see below), whose sum is σ = 247300164. Its totient is φ = 54955584.

The previous prime is 137388967. The next prime is 137388971. The reversal of 137388970 is 79883731.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 130850721 + 6538249 = 11439^2 + 2557^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 137388970.

It is not an unprimeable number, because it can be changed into a prime (137388971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6869439 + ... + 6869458.

Almost surely, 2^137388970 is an apocalyptic number.

137388970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137388970 is a deficient number, since it is larger than the sum of its proper divisors (109911194).

137388970 is a wasteful number, since it uses less digits than its factorization.

137388970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13738904.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 137388970 is about 11721.3041083320. The cubic root of 137388970 is about 516.0010941827.

The spelling of 137388970 in words is "one hundred thirty-seven million, three hundred eighty-eight thousand, nine hundred seventy".