245097399 has 4 divisors (see below), whose sum is σ = 326796536. Its totient is φ = 163398264.

The previous prime is 245097379. The next prime is 245097409. The reversal of 245097399 is 993790542.

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

It is not a de Polignac number, because 245097399 - 2¹¹ = 245095351 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 (245097379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40849564 + ... + 40849569.

It is an arithmetic number, because the mean of its divisors is an integer number (81699134).

Almost surely, 2^245097399 is an apocalyptic number.

245097399 is a deficient number, since it is larger than the sum of its proper divisors (81699137).

245097399 is an equidigital number, since it uses as much as digits as its factorization.

245097399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81699136.

The product of its (nonzero) digits is 612360, while the sum is 48.

The square root of 245097399 is about 15655.5868302661. The cubic root of 245097399 is about 625.8153829252.

The spelling of 245097399 in words is "two hundred forty-five million, ninety-seven thousand, three hundred ninety-nine".