135442177 has 12 divisors (see below), whose sum is σ = 147571200. Its totient is φ = 124249008.

The previous prime is 135442171. The next prime is 135442187. The reversal of 135442177 is 771244531.

It is not a de Polignac number, because 135442177 - 2²³ = 127053569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135442171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25824 + ... + 30622.

It is an arithmetic number, because the mean of its divisors is an integer number (12297600).

Almost surely, 2^135442177 is an apocalyptic number.

It is an amenable number.

135442177 is a deficient number, since it is larger than the sum of its proper divisors (12129023).

135442177 is a wasteful number, since it uses less digits than its factorization.

135442177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4992 (or 4979 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 135442177 is about 11637.9627512722. The cubic root of 135442177 is about 513.5522566057.

The spelling of 135442177 in words is "one hundred thirty-five million, four hundred forty-two thousand, one hundred seventy-seven".