245354813 has 4 divisors (see below), whose sum is σ = 267659808. Its totient is φ = 223049820.

The previous prime is 245354789. The next prime is 245354827. The reversal of 245354813 is 318453542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245354813 - 2¹⁰ = 245353789 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 (245354843) 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, 11152481 + ... + 11152502.

It is an arithmetic number, because the mean of its divisors is an integer number (66914952).

Almost surely, 2^245354813 is an apocalyptic number.

It is an amenable number.

245354813 is a deficient number, since it is larger than the sum of its proper divisors (22304995).

245354813 is a wasteful number, since it uses less digits than its factorization.

245354813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22304994.

The product of its digits is 57600, while the sum is 35.

The square root of 245354813 is about 15663.8058274482. The cubic root of 245354813 is about 626.0343941947.

The spelling of 245354813 in words is "two hundred forty-five million, three hundred fifty-four thousand, eight hundred thirteen".