137750906 has 8 divisors (see below), whose sum is σ = 206715360. Its totient is φ = 68845788.

The previous prime is 137750903. The next prime is 137750911. The reversal of 137750906 is 609057731.

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 137750906.

It is not an unprimeable number, because it can be changed into a prime (137750903) 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, 8486 + ... + 18641.

It is an arithmetic number, because the mean of its divisors is an integer number (25839420).

Almost surely, 2^137750906 is an apocalyptic number.

137750906 is a deficient number, since it is larger than the sum of its proper divisors (68964454).

137750906 is a wasteful number, since it uses less digits than its factorization.

137750906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29668.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 137750906 is about 11736.7331911397. The cubic root of 137750906 is about 516.4538127493.

The spelling of 137750906 in words is "one hundred thirty-seven million, seven hundred fifty thousand, nine hundred six".