135865570 has 16 divisors (see below), whose sum is σ = 245302848. Its totient is φ = 54180720.

The previous prime is 135865567. The next prime is 135865571. The reversal of 135865570 is 75568531.

It is a super-2 number, since 2×135865570² = 36918906222849800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135865571) 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, 17214 + ... + 23833.

It is an arithmetic number, because the mean of its divisors is an integer number (15331428).

Almost surely, 2^135865570 is an apocalyptic number.

135865570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135865570 is a deficient number, since it is larger than the sum of its proper divisors (109437278).

135865570 is a wasteful number, since it uses less digits than its factorization.

135865570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41385.

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 135865570 is about 11656.1387260104. The cubic root of 135865570 is about 514.0868223788.

The spelling of 135865570 in words is "one hundred thirty-five million, eight hundred sixty-five thousand, five hundred seventy".