135672572232 has 108 divisors (see below), whose sum is σ = 372639455955. Its totient is φ = 44593892064.

The previous prime is 135672572183. The next prime is 135672572261. The reversal of 135672572232 is 232275276531.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

135672572232 is a `hidden beast` number, since 1 + 3 + 5 + 6 + 72 + 572 + 2 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 67836286116 + 67836286116 = 260454^2 + 260454^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=260454.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 259411923 + ... + 259412445.

Almost surely, 2^135672572232 is an apocalyptic number.

135672572232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135672572232

135672572232 is an abundant number, since it is smaller than the sum of its proper divisors (236966883723).

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

135672572232 is an frugal number, since it uses more digits than its factorization.

135672572232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 611 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 45.

The spelling of 135672572232 in words is "one hundred thirty-five billion, six hundred seventy-two million, five hundred seventy-two thousand, two hundred thirty-two".