135475623 has 12 divisors (see below), whose sum is σ = 199004520. Its totient is φ = 88785936.

The previous prime is 135475583. The next prime is 135475633. The reversal of 135475623 is 326574531.

It is not a de Polignac number, because 135475623 - 2¹² = 135471527 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135475633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127036 + ... + 128097.

It is an arithmetic number, because the mean of its divisors is an integer number (16583710).

Almost surely, 2^135475623 is an apocalyptic number.

135475623 is a deficient number, since it is larger than the sum of its proper divisors (63528897).

135475623 is a wasteful number, since it uses less digits than its factorization.

135475623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255198 (or 255195 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 135475623 is about 11639.3995979174. The cubic root of 135475623 is about 513.5945252095.

The spelling of 135475623 in words is "one hundred thirty-five million, four hundred seventy-five thousand, six hundred twenty-three".