245476457 has 6 divisors (see below), whose sum is σ = 247157358. Its totient is φ = 243806912.

The previous prime is 245476453. The next prime is 245476487. The reversal of 245476457 is 754674542.

It is a happy number.

245476457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 10896601 + 234579856 = 3301^2 + 15316^2 .

It is not a de Polignac number, because 245476457 - 2² = 245476453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245476453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16673 + ... + 27729.

It is an arithmetic number, because the mean of its divisors is an integer number (41192893).

Almost surely, 2^245476457 is an apocalyptic number.

It is an amenable number.

245476457 is a deficient number, since it is larger than the sum of its proper divisors (1680901).

245476457 is an equidigital number, since it uses as much as digits as its factorization.

245476457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11355 (or 11206 counting only the distinct ones).

The product of its digits is 940800, while the sum is 44.

The square root of 245476457 is about 15667.6883106603. The cubic root of 245476457 is about 626.1378372385.

The spelling of 245476457 in words is "two hundred forty-five million, four hundred seventy-six thousand, four hundred fifty-seven".