135315644 has 12 divisors (see below), whose sum is σ = 249265800. Its totient is φ = 64096848.

The previous prime is 135315641. The next prime is 135315667. The reversal of 135315644 is 446513531.

It is a super-2 number, since 2×135315644² = 36620647022269472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135315644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135315641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890159 + ... + 890310.

It is an arithmetic number, because the mean of its divisors is an integer number (20772150).

Almost surely, 2^135315644 is an apocalyptic number.

It is an amenable number.

135315644 is a deficient number, since it is larger than the sum of its proper divisors (113950156).

135315644 is a wasteful number, since it uses less digits than its factorization.

135315644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780492 (or 1780490 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 135315644 is about 11632.5252632436. The cubic root of 135315644 is about 513.3922829174.

The spelling of 135315644 in words is "one hundred thirty-five million, three hundred fifteen thousand, six hundred forty-four".