253344947 has 2 divisors, whose sum is σ = 253344948. Its totient is φ = 253344946.

The previous prime is 253344943. The next prime is 253344991. The reversal of 253344947 is 749443352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253344947 - 2² = 253344943 is a prime.

It is not a weakly prime, because it can be changed into another prime (253344943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126672473 + 126672474.

It is an arithmetic number, because the mean of its divisors is an integer number (126672474).

Almost surely, 2^253344947 is an apocalyptic number.

253344947 is a deficient number, since it is larger than the sum of its proper divisors (1).

253344947 is an equidigital number, since it uses as much as digits as its factorization.

253344947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 41.

The square root of 253344947 is about 15916.8133431287. The cubic root of 253344947 is about 632.7576661652.

The spelling of 253344947 in words is "two hundred fifty-three million, three hundred forty-four thousand, nine hundred forty-seven".