1253424461 has 2 divisors, whose sum is σ = 1253424462. Its totient is φ = 1253424460.

The previous prime is 1253424449. The next prime is 1253424493. The reversal of 1253424461 is 1644243521.

It is an a-pointer prime, because the next prime (1253424493) can be obtained adding 1253424461 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 944332900 + 309091561 = 30730^2 + 17581^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253424461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1253424421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626712230 + 626712231.

It is an arithmetic number, because the mean of its divisors is an integer number (626712231).

Almost surely, 2^1253424461 is an apocalyptic number.

It is an amenable number.

1253424461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253424461 is an equidigital number, since it uses as much as digits as its factorization.

1253424461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 32.

The square root of 1253424461 is about 35403.7351278082. The cubic root of 1253424461 is about 1078.2001517491.

Adding to 1253424461 its reverse (1644243521), we get a palindrome (2897667982).

The spelling of 1253424461 in words is "one billion, two hundred fifty-three million, four hundred twenty-four thousand, four hundred sixty-one".