245642927 has 2 divisors, whose sum is σ = 245642928. Its totient is φ = 245642926.

The previous prime is 245642923. The next prime is 245642933. The reversal of 245642927 is 729246542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245642927 - 2² = 245642923 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245642923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122821463 + 122821464.

It is an arithmetic number, because the mean of its divisors is an integer number (122821464).

Almost surely, 2^245642927 is an apocalyptic number.

245642927 is a deficient number, since it is larger than the sum of its proper divisors (1).

245642927 is an equidigital number, since it uses as much as digits as its factorization.

245642927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 41.

The square root of 245642927 is about 15672.9999361960. Note that the first 4 decimals coincide. The cubic root of 245642927 is about 626.2793438335.

The spelling of 245642927 in words is "two hundred forty-five million, six hundred forty-two thousand, nine hundred twenty-seven".