245439937 has 4 divisors (see below), whose sum is σ = 245813040. Its totient is φ = 245066836.

The previous prime is 245439913. The next prime is 245439949. The reversal of 245439937 is 739934542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245439937 - 2⁷ = 245439809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245439977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185563 + ... + 186880.

It is an arithmetic number, because the mean of its divisors is an integer number (61453260).

Almost surely, 2^245439937 is an apocalyptic number.

It is an amenable number.

245439937 is a deficient number, since it is larger than the sum of its proper divisors (373103).

245439937 is an equidigital number, since it uses as much as digits as its factorization.

245439937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373102.

The product of its digits is 816480, while the sum is 46.

The square root of 245439937 is about 15666.5228113963. The cubic root of 245439937 is about 626.1067851258.

The spelling of 245439937 in words is "two hundred forty-five million, four hundred thirty-nine thousand, nine hundred thirty-seven".