135572506 has 16 divisors (see below), whose sum is σ = 210722400. Its totient is φ = 65339568.

The previous prime is 135572473. The next prime is 135572509. The reversal of 135572506 is 605275531.

It is not an unprimeable number, because it can be changed into a prime (135572509) 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, 41281 + ... + 44443.

It is an arithmetic number, because the mean of its divisors is an integer number (13170150).

Almost surely, 2^135572506 is an apocalyptic number.

135572506 is a deficient number, since it is larger than the sum of its proper divisors (75149894).

135572506 is a wasteful number, since it uses less digits than its factorization.

135572506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 135572506 is about 11643.5607096798. The cubic root of 135572506 is about 513.7169253891.

The spelling of 135572506 in words is "one hundred thirty-five million, five hundred seventy-two thousand, five hundred six".