135249612 has 12 divisors (see below), whose sum is σ = 315582456. Its totient is φ = 45083200.

The previous prime is 135249601. The next prime is 135249623. The reversal of 135249612 is 216942531.

It is an interprime number because it is at equal distance from previous prime (135249601) and next prime (135249623).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5635389 + ... + 5635412.

It is an arithmetic number, because the mean of its divisors is an integer number (26298538).

Almost surely, 2^135249612 is an apocalyptic number.

135249612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135249612 is an abundant number, since it is smaller than the sum of its proper divisors (180332844).

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

135249612 is a wasteful number, since it uses less digits than its factorization.

135249612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11270808 (or 11270806 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 135249612 is about 11629.6866681781. The cubic root of 135249612 is about 513.3087600913.

The spelling of 135249612 in words is "one hundred thirty-five million, two hundred forty-nine thousand, six hundred twelve".