1254465166 has 4 divisors (see below), whose sum is σ = 1881697752. Its totient is φ = 627232582.

The previous prime is 1254465161. The next prime is 1254465167. The reversal of 1254465166 is 6615644521.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254465161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313616290 + ... + 313616293.

It is an arithmetic number, because the mean of its divisors is an integer number (470424438).

Almost surely, 2^1254465166 is an apocalyptic number.

1254465166 is a deficient number, since it is larger than the sum of its proper divisors (627232586).

1254465166 is an equidigital number, since it uses as much as digits as its factorization.

1254465166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627232585.

The product of its digits is 172800, while the sum is 40.

The square root of 1254465166 is about 35418.4297506256. The cubic root of 1254465166 is about 1078.4984752392.

The spelling of 1254465166 in words is "one billion, two hundred fifty-four million, four hundred sixty-five thousand, one hundred sixty-six".