135123472 has 20 divisors (see below), whose sum is σ = 285602256. Its totient is φ = 61419680.

The previous prime is 135123433. The next prime is 135123491. The reversal of 135123472 is 274321531.

It is a self number, because there is not a number n which added to its sum of digits gives 135123472.

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, 383698 + ... + 384049.

Almost surely, 2^135123472 is an apocalyptic number.

It is an amenable number.

135123472 is an abundant number, since it is smaller than the sum of its proper divisors (150478784).

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

135123472 is a wasteful number, since it uses less digits than its factorization.

135123472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767766 (or 767760 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 135123472 is about 11624.2622131471. The cubic root of 135123472 is about 513.1491320137.

The spelling of 135123472 in words is "one hundred thirty-five million, one hundred twenty-three thousand, four hundred seventy-two".