32125391 has 4 divisors (see below), whose sum is σ = 32437392. Its totient is φ = 31813392.

The previous prime is 32125369. The next prime is 32125433. The reversal of 32125391 is 19352123.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32125391 is a prime.

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 32125391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32125991) 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, 155846 + ... + 156051.

It is an arithmetic number, because the mean of its divisors is an integer number (8109348).

Almost surely, 2^32125391 is an apocalyptic number.

32125391 is a deficient number, since it is larger than the sum of its proper divisors (312001).

32125391 is a wasteful number, since it uses less digits than its factorization.

32125391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312000.

The product of its digits is 1620, while the sum is 26.

The square root of 32125391 is about 5667.9265168137. The cubic root of 32125391 is about 317.8943486955.

The spelling of 32125391 in words is "thirty-two million, one hundred twenty-five thousand, three hundred ninety-one".