249613064 has 8 divisors (see below), whose sum is σ = 468024510. Its totient is φ = 124806528.

The previous prime is 249613027. The next prime is 249613069. The reversal of 249613064 is 460316942.

It can be written as a sum of positive squares in only one way, i.e., 142324900 + 107288164 = 11930^2 + 10358^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (249613069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15600809 + ... + 15600824.

Almost surely, 2^249613064 is an apocalyptic number.

It is an amenable number.

249613064 is a deficient number, since it is larger than the sum of its proper divisors (218411446).

249613064 is a wasteful number, since it uses less digits than its factorization.

249613064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31201639 (or 31201635 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 249613064 is about 15799.1475719420. The cubic root of 249613064 is about 629.6353512536.

The spelling of 249613064 in words is "two hundred forty-nine million, six hundred thirteen thousand, sixty-four".