137606730 has 16 divisors (see below), whose sum is σ = 330256224. Its totient is φ = 36695120.

The previous prime is 137606717. The next prime is 137606731. The reversal of 137606730 is 37606731.

137606730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×137606730² = 37871224282585800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 137606691 and 137606700.

It is not an unprimeable number, because it can be changed into a prime (137606731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2293416 + ... + 2293475.

It is an arithmetic number, because the mean of its divisors is an integer number (20641014).

Almost surely, 2^137606730 is an apocalyptic number.

137606730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137606730 is an abundant number, since it is smaller than the sum of its proper divisors (192649494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137606730 is a wasteful number, since it uses less digits than its factorization.

137606730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586901.

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 137606730 is about 11730.5894992537. The cubic root of 137606730 is about 516.2735689553.

Subtracting from 137606730 its reverse (37606731), we obtain a palindrome (99999999).

The spelling of 137606730 in words is "one hundred thirty-seven million, six hundred six thousand, seven hundred thirty".