1252451051 has 2 divisors, whose sum is σ = 1252451052. Its totient is φ = 1252451050.

The previous prime is 1252451041. The next prime is 1252451071. The reversal of 1252451051 is 1501542521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252451051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1252451051.

It is not a weakly prime, because it can be changed into another prime (1252451041) 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, 626225525 + 626225526.

It is an arithmetic number, because the mean of its divisors is an integer number (626225526).

Almost surely, 2^1252451051 is an apocalyptic number.

1252451051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252451051 is an equidigital number, since it uses as much as digits as its factorization.

1252451051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1252451051 is about 35389.9851794261. The cubic root of 1252451051 is about 1077.9209692246.

Adding to 1252451051 its reverse (1501542521), we get a palindrome (2753993572).

The spelling of 1252451051 in words is "one billion, two hundred fifty-two million, four hundred fifty-one thousand, fifty-one".