1631424253 has 2 divisors, whose sum is σ = 1631424254. Its totient is φ = 1631424252.

The previous prime is 1631424251. The next prime is 1631424271. The reversal of 1631424253 is 3524241361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1381088569 + 250335684 = 37163^2 + 15822^2 .

It is a cyclic number.

It is not a de Polignac number, because 1631424253 - 2¹ = 1631424251 is a prime.

Together with 1631424251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1631424251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815712126 + 815712127.

It is an arithmetic number, because the mean of its divisors is an integer number (815712127).

Almost surely, 2^1631424253 is an apocalyptic number.

It is an amenable number.

1631424253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1631424253 is an equidigital number, since it uses as much as digits as its factorization.

1631424253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 31.

The square root of 1631424253 is about 40390.8931938872. The cubic root of 1631424253 is about 1177.2145958067.

The spelling of 1631424253 in words is "one billion, six hundred thirty-one million, four hundred twenty-four thousand, two hundred fifty-three".