245548931 has 2 divisors, whose sum is σ = 245548932. Its totient is φ = 245548930.

The previous prime is 245548883. The next prime is 245548937. The reversal of 245548931 is 139845542.

245548931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245548931 is a prime.

It is a super-2 number, since 2×245548931² = 120588555030485522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245548937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122774465 + 122774466.

It is an arithmetic number, because the mean of its divisors is an integer number (122774466).

Almost surely, 2^245548931 is an apocalyptic number.

245548931 is a deficient number, since it is larger than the sum of its proper divisors (1).

245548931 is an equidigital number, since it uses as much as digits as its factorization.

245548931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 41.

The square root of 245548931 is about 15670.0009891512. Note that the first 3 decimals coincide. The cubic root of 245548931 is about 626.1994510881.

The spelling of 245548931 in words is "two hundred forty-five million, five hundred forty-eight thousand, nine hundred thirty-one".