135277623 has 24 divisors (see below), whose sum is σ = 213585008. Its totient is φ = 82000512.

The previous prime is 135277621. The next prime is 135277627. The reversal of 135277623 is 326772531.

135277623 is a `hidden beast` number, since 1 + 3 + 5 + 27 + 7 + 623 = 666.

It is not a de Polignac number, because 135277623 - 2¹ = 135277621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135277621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 790 + ... + 16467.

Almost surely, 2^135277623 is an apocalyptic number.

135277623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

135277623 is a deficient number, since it is larger than the sum of its proper divisors (78307385).

135277623 is a wasteful number, since it uses less digits than its factorization.

135277623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17343 (or 17340 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 135277623 is about 11630.8908945102. The cubic root of 135277623 is about 513.3441940788.

The spelling of 135277623 in words is "one hundred thirty-five million, two hundred seventy-seven thousand, six hundred twenty-three".