134687977 has 16 divisors (see below), whose sum is σ = 146759040. Its totient is φ = 123219712.

The previous prime is 134687933. The next prime is 134687981. The reversal of 134687977 is 779786431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134687977 is a prime.

It is a super-2 number, since 2×134687977² = 36281702296705058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134687177) 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, 74478 + ... + 76264.

It is an arithmetic number, because the mean of its divisors is an integer number (9172440).

Almost surely, 2^134687977 is an apocalyptic number.

It is an amenable number.

134687977 is a deficient number, since it is larger than the sum of its proper divisors (12071063).

134687977 is a wasteful number, since it uses less digits than its factorization.

134687977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952.

The product of its digits is 1778112, while the sum is 52.

The square root of 134687977 is about 11605.5149390279. The cubic root of 134687977 is about 512.5972555465.

The spelling of 134687977 in words is "one hundred thirty-four million, six hundred eighty-seven thousand, nine hundred seventy-seven".