1252412451 has 6 divisors (see below), whose sum is σ = 1809040220. Its totient is φ = 834941628.

The previous prime is 1252412449. The next prime is 1252412459. The reversal of 1252412451 is 1542142521.

It is a happy number.

1252412451 is a `hidden beast` number, since 12 + 524 + 124 + 5 + 1 = 666.

It is not a de Polignac number, because 1252412451 - 2¹ = 1252412449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252412459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69578461 + ... + 69578478.

Almost surely, 2^1252412451 is an apocalyptic number.

1252412451 is a deficient number, since it is larger than the sum of its proper divisors (556627769).

1252412451 is a wasteful number, since it uses less digits than its factorization.

1252412451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139156945 (or 139156942 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 1252412451 is about 35389.4398232015. The cubic root of 1252412451 is about 1077.9098954248.

Adding to 1252412451 its reverse (1542142521), we get a palindrome (2794554972).

The spelling of 1252412451 in words is "one billion, two hundred fifty-two million, four hundred twelve thousand, four hundred fifty-one".