135381404 has 24 divisors (see below), whose sum is σ = 261763488. Its totient is φ = 60938240.

The previous prime is 135381397. The next prime is 135381419. The reversal of 135381404 is 404183531.

It is a super-2 number, since 2×135381404² = 36656249098022432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41717 + ... + 44844.

It is an arithmetic number, because the mean of its divisors is an integer number (10906812).

Almost surely, 2^135381404 is an apocalyptic number.

It is an amenable number.

135381404 is a deficient number, since it is larger than the sum of its proper divisors (126382084).

135381404 is a wasteful number, since it uses less digits than its factorization.

135381404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86605 (or 86603 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 135381404 is about 11635.3514772868. The cubic root of 135381404 is about 513.4754346951.

The spelling of 135381404 in words is "one hundred thirty-five million, three hundred eighty-one thousand, four hundred four".