245652749 has 2 divisors, whose sum is σ = 245652750. Its totient is φ = 245652748.

The previous prime is 245652733. The next prime is 245652761. The reversal of 245652749 is 947256542.

245652749 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 can be written as a sum of positive squares in only one way, i.e., 126450025 + 119202724 = 11245^2 + 10918^2 .

It is a cyclic number.

It is not a de Polignac number, because 245652749 - 2⁴ = 245652733 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245652709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122826374 + 122826375.

It is an arithmetic number, because the mean of its divisors is an integer number (122826375).

Almost surely, 2^245652749 is an apocalyptic number.

It is an amenable number.

245652749 is a deficient number, since it is larger than the sum of its proper divisors (1).

245652749 is an equidigital number, since it uses as much as digits as its factorization.

245652749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 44.

The square root of 245652749 is about 15673.3132744803. The cubic root of 245652749 is about 626.2876909545.

The spelling of 245652749 in words is "two hundred forty-five million, six hundred fifty-two thousand, seven hundred forty-nine".