133623472 has 10 divisors (see below), whose sum is σ = 258895508. Its totient is φ = 66811728.

The previous prime is 133623461. The next prime is 133623487. The reversal of 133623472 is 274326331.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4175718 + ... + 4175749.

Almost surely, 2^133623472 is an apocalyptic number.

It is an amenable number.

133623472 is a deficient number, since it is larger than the sum of its proper divisors (125272036).

133623472 is an equidigital number, since it uses as much as digits as its factorization.

133623472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8351475 (or 8351469 counting only the distinct ones).

The product of its digits is 18144, while the sum is 31.

The square root of 133623472 is about 11559.5619294158. The cubic root of 133623472 is about 511.2432464640.

The spelling of 133623472 in words is "one hundred thirty-three million, six hundred twenty-three thousand, four hundred seventy-two".