133575672 has 32 divisors (see below), whose sum is σ = 334691280. Its totient is φ = 44424960.

The previous prime is 133575667. The next prime is 133575677. The reversal of 133575672 is 276575331.

It is an interprime number because it is at equal distance from previous prime (133575667) and next prime (133575677).

It is a self number, because there is not a number n which added to its sum of digits gives 133575672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133575677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5028 + ... + 17100.

Almost surely, 2^133575672 is an apocalyptic number.

133575672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133575672 is an abundant number, since it is smaller than the sum of its proper divisors (201115608).

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

133575672 is a wasteful number, since it uses less digits than its factorization.

133575672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12543 (or 12539 counting only the distinct ones).

The product of its digits is 132300, while the sum is 39.

The square root of 133575672 is about 11557.4941920816. The cubic root of 133575672 is about 511.1822782790.

The spelling of 133575672 in words is "one hundred thirty-three million, five hundred seventy-five thousand, six hundred seventy-two".