245312371 has 2 divisors, whose sum is σ = 245312372. Its totient is φ = 245312370.

The previous prime is 245312359. The next prime is 245312381. The reversal of 245312371 is 173213542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245312371 - 2¹⁵ = 245279603 is a prime.

It is equal to p_13436830 and since 245312371 and 13436830 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (245312381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122656185 + 122656186.

It is an arithmetic number, because the mean of its divisors is an integer number (122656186).

Almost surely, 2^245312371 is an apocalyptic number.

245312371 is a deficient number, since it is larger than the sum of its proper divisors (1).

245312371 is an equidigital number, since it uses as much as digits as its factorization.

245312371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 28.

The square root of 245312371 is about 15662.4509895482. The cubic root of 245312371 is about 625.9982945239.

The spelling of 245312371 in words is "two hundred forty-five million, three hundred twelve thousand, three hundred seventy-one".