245420313 has 16 divisors (see below), whose sum is σ = 347417280. Its totient is φ = 153570816.

The previous prime is 245420303. The next prime is 245420317. The reversal of 245420313 is 313024542.

It is not a de Polignac number, because 245420313 - 2¹³ = 245412121 is a prime.

It is a super-2 number, since 2×245420313² = 120462260066035938, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (245420317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12981 + ... + 25677.

It is an arithmetic number, because the mean of its divisors is an integer number (21713580).

Almost surely, 2^245420313 is an apocalyptic number.

It is an amenable number.

245420313 is a deficient number, since it is larger than the sum of its proper divisors (101996967).

245420313 is a wasteful number, since it uses less digits than its factorization.

245420313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13096.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 245420313 is about 15665.8964952536. The cubic root of 245420313 is about 626.0900980194.

Adding to 245420313 its reverse (313024542), we get a palindrome (558444855).

The spelling of 245420313 in words is "two hundred forty-five million, four hundred twenty thousand, three hundred thirteen".