133211725 has 12 divisors (see below), whose sum is σ = 166176864. Its totient is φ = 105927920.

The previous prime is 133211713. The next prime is 133211753. The reversal of 133211725 is 527112331.

It is a happy number.

It is not a de Polignac number, because 133211725 - 2⁵ = 133211693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133211725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11779 + ... + 20128.

It is an arithmetic number, because the mean of its divisors is an integer number (13848072).

Almost surely, 2^133211725 is an apocalyptic number.

It is an amenable number.

133211725 is a deficient number, since it is larger than the sum of its proper divisors (32965139).

133211725 is a wasteful number, since it uses less digits than its factorization.

133211725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32084 (or 32079 counting only the distinct ones).

The product of its digits is 1260, while the sum is 25.

The square root of 133211725 is about 11541.7383872621. The cubic root of 133211725 is about 510.7175916643.

The spelling of 133211725 in words is "one hundred thirty-three million, two hundred eleven thousand, seven hundred twenty-five".