137986807 has 12 divisors (see below), whose sum is σ = 167523760. Its totient is φ = 111315456.

The previous prime is 137986789. The next prime is 137986813. The reversal of 137986807 is 708689731.

137986807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 137986807 - 2⁷ = 137986679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137986007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32082 + ... + 36127.

Almost surely, 2^137986807 is an apocalyptic number.

137986807 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

137986807 is a deficient number, since it is larger than the sum of its proper divisors (29536953).

137986807 is an equidigital number, since it uses as much as digits as its factorization.

137986807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68250 (or 68233 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 137986807 is about 11746.7785796788. The cubic root of 137986807 is about 516.7484568863.

The spelling of 137986807 in words is "one hundred thirty-seven million, nine hundred eighty-six thousand, eight hundred seven".