125185321 has 4 divisors (see below), whose sum is σ = 125226112. Its totient is φ = 125144532.

The previous prime is 125185309. The next prime is 125185327. The reversal of 125185321 is 123581521.

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 125185321 - 2⁹ = 125184809 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 125185321.

It is not an unprimeable number, because it can be changed into a prime (125185327) 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, 15381 + ... + 22066.

It is an arithmetic number, because the mean of its divisors is an integer number (31306528).

Almost surely, 2^125185321 is an apocalyptic number.

It is an amenable number.

125185321 is a deficient number, since it is larger than the sum of its proper divisors (40791).

125185321 is an equidigital number, since it uses as much as digits as its factorization.

125185321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40790.

The product of its digits is 2400, while the sum is 28.

The square root of 125185321 is about 11188.6246250377. The cubic root of 125185321 is about 500.2469726556.

The spelling of 125185321 in words is "one hundred twenty-five million, one hundred eighty-five thousand, three hundred twenty-one".