245475397 has 2 divisors, whose sum is σ = 245475398. Its totient is φ = 245475396.

The previous prime is 245475371. The next prime is 245475413. The reversal of 245475397 is 793574542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142229476 + 103245921 = 11926^2 + 10161^2 .

It is a cyclic number.

It is not a de Polignac number, because 245475397 - 2²⁷ = 111257669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245475697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122737698 + 122737699.

It is an arithmetic number, because the mean of its divisors is an integer number (122737699).

Almost surely, 2^245475397 is an apocalyptic number.

It is an amenable number.

245475397 is a deficient number, since it is larger than the sum of its proper divisors (1).

245475397 is an equidigital number, since it uses as much as digits as its factorization.

245475397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 46.

The square root of 245475397 is about 15667.6544830424. The cubic root of 245475397 is about 626.1369359884.

The spelling of 245475397 in words is "two hundred forty-five million, four hundred seventy-five thousand, three hundred ninety-seven".