245344039 has 4 divisors (see below), whose sum is σ = 245488320. Its totient is φ = 245199760.

The previous prime is 245344027. The next prime is 245344063. The reversal of 245344039 is 930443542.

It is a happy number.

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 245344039 - 2⁷ = 245343911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245343995 and 245344013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245344009) 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, 69559 + ... + 73000.

It is an arithmetic number, because the mean of its divisors is an integer number (61372080).

Almost surely, 2^245344039 is an apocalyptic number.

245344039 is a deficient number, since it is larger than the sum of its proper divisors (144281).

245344039 is a wasteful number, since it uses less digits than its factorization.

245344039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144280.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 245344039 is about 15663.4619098078. The cubic root of 245344039 is about 626.0252306040.

The spelling of 245344039 in words is "two hundred forty-five million, three hundred forty-four thousand, thirty-nine".