134990779 has 16 divisors (see below), whose sum is σ = 168569856. Its totient is φ = 105019200.

The previous prime is 134990767. The next prime is 134990783. The reversal of 134990779 is 977099431.

It is a happy number.

It is not a de Polignac number, because 134990779 - 2⁵ = 134990747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134990759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71214 + ... + 73084.

It is an arithmetic number, because the mean of its divisors is an integer number (10535616).

Almost surely, 2^134990779 is an apocalyptic number.

134990779 is a deficient number, since it is larger than the sum of its proper divisors (33579077).

134990779 is a wasteful number, since it uses less digits than its factorization.

134990779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 134990779 is about 11618.5532231858. The cubic root of 134990779 is about 512.9811039680.

The spelling of 134990779 in words is "one hundred thirty-four million, nine hundred ninety thousand, seven hundred seventy-nine".