166407249 has 8 divisors (see below), whose sum is σ = 229527360. Its totient is φ = 107112656.

The previous prime is 166407239. The next prime is 166407251. The reversal of 166407249 is 942704661.

It is a happy number.

166407249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 166407249 - 2⁸ = 166406993 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166407209) 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, 956277 + ... + 956450.

It is an arithmetic number, because the mean of its divisors is an integer number (28690920).

Almost surely, 2^166407249 is an apocalyptic number.

It is an amenable number.

166407249 is a deficient number, since it is larger than the sum of its proper divisors (63120111).

166407249 is a wasteful number, since it uses less digits than its factorization.

166407249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912759.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 166407249 is about 12899.8933716523. The cubic root of 166407249 is about 550.0355337924.

The spelling of 166407249 in words is "one hundred sixty-six million, four hundred seven thousand, two hundred forty-nine".