132725381 has 4 divisors (see below), whose sum is σ = 133204812. Its totient is φ = 132245952.

The previous prime is 132725377. The next prime is 132725389. The reversal of 132725381 is 183527231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90916225 + 41809156 = 9535^2 + 6466^2 .

It is a cyclic number.

It is not a de Polignac number, because 132725381 - 2² = 132725377 is a prime.

It is a super-2 number, since 2×132725381² = 35232053523190322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132725389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239300 + ... + 239853.

It is an arithmetic number, because the mean of its divisors is an integer number (33301203).

Almost surely, 2^132725381 is an apocalyptic number.

It is an amenable number.

132725381 is a deficient number, since it is larger than the sum of its proper divisors (479431).

132725381 is an equidigital number, since it uses as much as digits as its factorization.

132725381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479430.

The product of its digits is 10080, while the sum is 32.

The square root of 132725381 is about 11520.6501986650. The cubic root of 132725381 is about 510.0953057822.

The spelling of 132725381 in words is "one hundred thirty-two million, seven hundred twenty-five thousand, three hundred eighty-one".