134979988 has 24 divisors (see below), whose sum is σ = 277512480. Its totient is φ = 56634720.

The previous prime is 134979961. The next prime is 134979989. The reversal of 134979988 is 889979431.

It is a happy number.

134979988 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134979989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117418 + ... + 118561.

It is an arithmetic number, because the mean of its divisors is an integer number (11563020).

Almost surely, 2^134979988 is an apocalyptic number.

It is an amenable number.

134979988 is an abundant number, since it is smaller than the sum of its proper divisors (142532492).

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

134979988 is a wasteful number, since it uses less digits than its factorization.

134979988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236007 (or 236005 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 58.

The square root of 134979988 is about 11618.0888273416. The cubic root of 134979988 is about 512.9674345736.

The spelling of 134979988 in words is "one hundred thirty-four million, nine hundred seventy-nine thousand, nine hundred eighty-eight".