135644970 has 32 divisors (see below), whose sum is σ = 328598208. Its totient is φ = 35833088.

The previous prime is 135644963. The next prime is 135644987. The reversal of 135644970 is 79446531.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17919 + ... + 24338.

It is an arithmetic number, because the mean of its divisors is an integer number (10268694).

Almost surely, 2^135644970 is an apocalyptic number.

135644970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135644970 is an abundant number, since it is smaller than the sum of its proper divisors (192953238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135644970 is a wasteful number, since it uses less digits than its factorization.

135644970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42374.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 135644970 is about 11646.6720568581. The cubic root of 135644970 is about 513.8084369448.

The spelling of 135644970 in words is "one hundred thirty-five million, six hundred forty-four thousand, nine hundred seventy".