249359039 has 4 divisors (see below), whose sum is σ = 251322624. Its totient is φ = 247395456.

The previous prime is 249359003. The next prime is 249359053. The reversal of 249359039 is 930953942.

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

It is a cyclic number.

It is not a de Polignac number, because 249359039 - 2¹² = 249354943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249359239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981602 + ... + 981855.

It is an arithmetic number, because the mean of its divisors is an integer number (62830656).

Almost surely, 2^249359039 is an apocalyptic number.

249359039 is a deficient number, since it is larger than the sum of its proper divisors (1963585).

249359039 is a wasteful number, since it uses less digits than its factorization.

249359039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963584.

The product of its (nonzero) digits is 262440, while the sum is 44.

The square root of 249359039 is about 15791.1063260305. The cubic root of 249359039 is about 629.4216906850.

The spelling of 249359039 in words is "two hundred forty-nine million, three hundred fifty-nine thousand, thirty-nine".