166425249 has 8 divisors (see below), whose sum is σ = 222136992. Its totient is φ = 110831840.

The previous prime is 166425241. The next prime is 166425269. The reversal of 166425249 is 942524661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166425249 - 2³ = 166425241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166425241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26247 + ... + 31964.

It is an arithmetic number, because the mean of its divisors is an integer number (27767124).

Almost surely, 2^166425249 is an apocalyptic number.

It is an amenable number.

166425249 is a deficient number, since it is larger than the sum of its proper divisors (55711743).

166425249 is an equidigital number, since it uses as much as digits as its factorization.

166425249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59167.

The product of its digits is 103680, while the sum is 39.

The square root of 166425249 is about 12900.5910329721. The cubic root of 166425249 is about 550.0553652254.

The spelling of 166425249 in words is "one hundred sixty-six million, four hundred twenty-five thousand, two hundred forty-nine".