137387746 has 8 divisors (see below), whose sum is σ = 216928080. Its totient is φ = 65078388.

The previous prime is 137387741. The next prime is 137387749. The reversal of 137387746 is 647783731.

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

It is a junction number, because it is equal to n+sod(n) for n = 137387696 and 137387705.

It is not an unprimeable number, because it can be changed into a prime (137387741) 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, 1807696 + ... + 1807771.

It is an arithmetic number, because the mean of its divisors is an integer number (27116010).

Almost surely, 2^137387746 is an apocalyptic number.

137387746 is a deficient number, since it is larger than the sum of its proper divisors (79540334).

137387746 is a wasteful number, since it uses less digits than its factorization.

137387746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615488.

The product of its digits is 592704, while the sum is 46.

The square root of 137387746 is about 11721.2518955955. The cubic root of 137387746 is about 515.9995618248. Note that the first 3 decimals are identical.

The spelling of 137387746 in words is "one hundred thirty-seven million, three hundred eighty-seven thousand, seven hundred forty-six".