135412557 has 32 divisors (see below), whose sum is σ = 215777280. Its totient is φ = 73906560.

The previous prime is 135412517. The next prime is 135412559. The reversal of 135412557 is 755214531.

It is not a de Polignac number, because 135412557 - 2⁸ = 135412301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135412559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50113 + ... + 52745.

It is an arithmetic number, because the mean of its divisors is an integer number (6743040).

Almost surely, 2^135412557 is an apocalyptic number.

It is an amenable number.

135412557 is a deficient number, since it is larger than the sum of its proper divisors (80364723).

135412557 is a wasteful number, since it uses less digits than its factorization.

135412557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753.

The product of its digits is 21000, while the sum is 33.

The square root of 135412557 is about 11636.6901221954. The cubic root of 135412557 is about 513.5148174388.

The spelling of 135412557 in words is "one hundred thirty-five million, four hundred twelve thousand, five hundred fifty-seven".