249172966 has 16 divisors (see below), whose sum is σ = 427472640. Its totient is φ = 106708680.

The previous prime is 249172951. The next prime is 249172969. The reversal of 249172966 is 669271942.

249172966 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249172969) 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, 15265 + ... + 27043.

It is an arithmetic number, because the mean of its divisors is an integer number (26717040).

Almost surely, 2^249172966 is an apocalyptic number.

249172966 is a deficient number, since it is larger than the sum of its proper divisors (178299674).

249172966 is a wasteful number, since it uses less digits than its factorization.

249172966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13299.

The product of its digits is 326592, while the sum is 46.

The square root of 249172966 is about 15785.2135240547. The cubic root of 249172966 is about 629.2650924906.

It can be divided in two parts, 2491 and 72966, that added together give a palindrome (75457).

The spelling of 249172966 in words is "two hundred forty-nine million, one hundred seventy-two thousand, nine hundred sixty-six".