134639607 has 4 divisors (see below), whose sum is σ = 179519480. Its totient is φ = 89759736.

The previous prime is 134639599. The next prime is 134639623. The reversal of 134639607 is 706936431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 134639607 - 2³ = 134639599 is a prime.

It is a super-2 number, since 2×134639607² = 36255647546228898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134638607) 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, 22439932 + ... + 22439937.

It is an arithmetic number, because the mean of its divisors is an integer number (44879870).

Almost surely, 2^134639607 is an apocalyptic number.

134639607 is a deficient number, since it is larger than the sum of its proper divisors (44879873).

134639607 is an equidigital number, since it uses as much as digits as its factorization.

134639607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44879872.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 134639607 is about 11603.4308288540. The cubic root of 134639607 is about 512.5358858076.

The spelling of 134639607 in words is "one hundred thirty-four million, six hundred thirty-nine thousand, six hundred seven".