135877481 has 8 divisors (see below), whose sum is σ = 145216800. Its totient is φ = 126687808.

The previous prime is 135877477. The next prime is 135877529. The reversal of 135877481 is 184778531.

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

It is not a de Polignac number, because 135877481 - 2² = 135877477 is a prime.

It is a super-2 number, since 2×135877481² = 36925379685810722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135877411) 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, 35531 + ... + 39168.

It is an arithmetic number, because the mean of its divisors is an integer number (18152100).

Almost surely, 2^135877481 is an apocalyptic number.

It is an amenable number.

135877481 is a deficient number, since it is larger than the sum of its proper divisors (9339319).

135877481 is a wasteful number, since it uses less digits than its factorization.

135877481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74823.

The product of its digits is 188160, while the sum is 44.

The square root of 135877481 is about 11656.6496473043. The cubic root of 135877481 is about 514.1018448485.

The spelling of 135877481 in words is "one hundred thirty-five million, eight hundred seventy-seven thousand, four hundred eighty-one".