135186974 has 16 divisors (see below), whose sum is σ = 224282688. Its totient is φ = 60707232.

The previous prime is 135186973. The next prime is 135186979. The reversal of 135186974 is 479681531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135186971) 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, 69302 + ... + 71225.

It is an arithmetic number, because the mean of its divisors is an integer number (14017668).

Almost surely, 2^135186974 is an apocalyptic number.

135186974 is a deficient number, since it is larger than the sum of its proper divisors (89095714).

135186974 is a wasteful number, since it uses less digits than its factorization.

135186974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140579.

The product of its digits is 181440, while the sum is 44.

The square root of 135186974 is about 11626.9933344782. The cubic root of 135186974 is about 513.2295051529.

The spelling of 135186974 in words is "one hundred thirty-five million, one hundred eighty-six thousand, nine hundred seventy-four".