135642941 has 8 divisors (see below), whose sum is σ = 158625984. Its totient is φ = 113561280.

The previous prime is 135642929. The next prime is 135642943. The reversal of 135642941 is 149246531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-135642941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135642943) 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, 225020 + ... + 225621.

It is an arithmetic number, because the mean of its divisors is an integer number (19828248).

Almost surely, 2^135642941 is an apocalyptic number.

It is an amenable number.

135642941 is a deficient number, since it is larger than the sum of its proper divisors (22983043).

135642941 is an equidigital number, since it uses as much as digits as its factorization.

135642941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450691.

The product of its digits is 25920, while the sum is 35.

The square root of 135642941 is about 11646.5849501045. The cubic root of 135642941 is about 513.8058750547.

The spelling of 135642941 in words is "one hundred thirty-five million, six hundred forty-two thousand, nine hundred forty-one".