249193965 has 32 divisors (see below), whose sum is σ = 412876800. Its totient is φ = 128208960.

The previous prime is 249193963. The next prime is 249194003. The reversal of 249193965 is 569391942.

It is not a de Polignac number, because 249193965 - 2¹ = 249193963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249193963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194196 + ... + 195474.

It is an arithmetic number, because the mean of its divisors is an integer number (12902400).

Almost surely, 2^249193965 is an apocalyptic number.

It is an amenable number.

249193965 is a deficient number, since it is larger than the sum of its proper divisors (163682835).

249193965 is a wasteful number, since it uses less digits than its factorization.

249193965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737.

The product of its digits is 524880, while the sum is 48.

The square root of 249193965 is about 15785.8786578385. The cubic root of 249193965 is about 629.2827690558.

The spelling of 249193965 in words is "two hundred forty-nine million, one hundred ninety-three thousand, nine hundred sixty-five".