1252041451 has 2 divisors, whose sum is σ = 1252041452. Its totient is φ = 1252041450.

The previous prime is 1252041437. The next prime is 1252041457. The reversal of 1252041451 is 1541402521.

It is a strong prime.

It is an emirp because it is prime and its reverse (1541402521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252041451 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252041457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626020725 + 626020726.

It is an arithmetic number, because the mean of its divisors is an integer number (626020726).

Almost surely, 2^1252041451 is an apocalyptic number.

1252041451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252041451 is an equidigital number, since it uses as much as digits as its factorization.

1252041451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1252041451 is about 35384.1977583214. The cubic root of 1252041451 is about 1077.8034491112.

Adding to 1252041451 its reverse (1541402521), we get a palindrome (2793443972).

The spelling of 1252041451 in words is "one billion, two hundred fifty-two million, forty-one thousand, four hundred fifty-one".