245302397 has 4 divisors (see below), whose sum is σ = 245543676. Its totient is φ = 245061120.

The previous prime is 245302381. The next prime is 245302399. The reversal of 245302397 is 793203542.

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

It can be written as a sum of positive squares in 2 ways, for example, as 174927076 + 70375321 = 13226^2 + 8389^2 .

It is a cyclic number.

It is not a de Polignac number, because 245302397 - 2⁴ = 245302381 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 (245302399) 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, 119108 + ... + 121149.

It is an arithmetic number, because the mean of its divisors is an integer number (61385919).

Almost surely, 2^245302397 is an apocalyptic number.

It is an amenable number.

245302397 is a deficient number, since it is larger than the sum of its proper divisors (241279).

245302397 is a wasteful number, since it uses less digits than its factorization.

245302397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241278.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 245302397 is about 15662.1325814846. The cubic root of 245302397 is about 625.9898103865.

The spelling of 245302397 in words is "two hundred forty-five million, three hundred two thousand, three hundred ninety-seven".