125867321 has 4 divisors (see below), whose sum is σ = 128794512. Its totient is φ = 122940132.

The previous prime is 125867317. The next prime is 125867323. The reversal of 125867321 is 123768521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125867321 - 2² = 125867317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125867323) 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, 1463531 + ... + 1463616.

It is an arithmetic number, because the mean of its divisors is an integer number (32198628).

Almost surely, 2^125867321 is an apocalyptic number.

It is an amenable number.

125867321 is a deficient number, since it is larger than the sum of its proper divisors (2927191).

125867321 is an equidigital number, since it uses as much as digits as its factorization.

125867321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927190.

The product of its digits is 20160, while the sum is 35.

The square root of 125867321 is about 11219.0606112990. The cubic root of 125867321 is about 501.1537636113.

The spelling of 125867321 in words is "one hundred twenty-five million, eight hundred sixty-seven thousand, three hundred twenty-one".