245442949 has 2 divisors, whose sum is σ = 245442950. Its totient is φ = 245442948.

The previous prime is 245442937. The next prime is 245442961. The reversal of 245442949 is 949244542.

It is a balanced prime because it is at equal distance from previous prime (245442937) and next prime (245442961).

It can be written as a sum of positive squares in only one way, i.e., 222546724 + 22896225 = 14918^2 + 4785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245442949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245442919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122721474 + 122721475.

It is an arithmetic number, because the mean of its divisors is an integer number (122721475).

Almost surely, 2^245442949 is an apocalyptic number.

It is an amenable number.

245442949 is a deficient number, since it is larger than the sum of its proper divisors (1).

245442949 is an equidigital number, since it uses as much as digits as its factorization.

245442949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 43.

The square root of 245442949 is about 15666.6189396436. The cubic root of 245442949 is about 626.1093462764.

The spelling of 245442949 in words is "two hundred forty-five million, four hundred forty-two thousand, nine hundred forty-nine".