253144477 has 2 divisors, whose sum is σ = 253144478. Its totient is φ = 253144476.

The previous prime is 253144469. The next prime is 253144511. The reversal of 253144477 is 774441352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253000836 + 143641 = 15906^2 + 379^2 .

It is a cyclic number.

It is not a de Polignac number, because 253144477 - 2³ = 253144469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253144427) 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, 126572238 + 126572239.

It is an arithmetic number, because the mean of its divisors is an integer number (126572239).

Almost surely, 2^253144477 is an apocalyptic number.

It is an amenable number.

253144477 is a deficient number, since it is larger than the sum of its proper divisors (1).

253144477 is an equidigital number, since it uses as much as digits as its factorization.

253144477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 37.

The square root of 253144477 is about 15910.5146679798. The cubic root of 253144477 is about 632.5907232891.

It can be divided in two parts, 25314 and 4477, that added together give a cube (29791 = 31³).

The spelling of 253144477 in words is "two hundred fifty-three million, one hundred forty-four thousand, four hundred seventy-seven".