135172694 has 16 divisors (see below), whose sum is σ = 204860448. Its totient is φ = 66889152.

The previous prime is 135172691. The next prime is 135172727. The reversal of 135172694 is 496271531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135172691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132932 + ... + 133944.

It is an arithmetic number, because the mean of its divisors is an integer number (12803778).

Almost surely, 2^135172694 is an apocalyptic number.

135172694 is a deficient number, since it is larger than the sum of its proper divisors (69687754).

135172694 is a wasteful number, since it uses less digits than its factorization.

135172694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639.

The product of its digits is 45360, while the sum is 38.

The square root of 135172694 is about 11626.3792300097. The cubic root of 135172694 is about 513.2114334527.

The spelling of 135172694 in words is "one hundred thirty-five million, one hundred seventy-two thousand, six hundred ninety-four".