1252451351 has 4 divisors (see below), whose sum is σ = 1273679400. Its totient is φ = 1231223304.

The previous prime is 1252451341. The next prime is 1252451363. The reversal of 1252451351 is 1531542521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1252451351 - 2⁶ = 1252451287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252451341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10613936 + ... + 10614053.

It is an arithmetic number, because the mean of its divisors is an integer number (318419850).

Almost surely, 2^1252451351 is an apocalyptic number.

1252451351 is a deficient number, since it is larger than the sum of its proper divisors (21228049).

1252451351 is an equidigital number, since it uses as much as digits as its factorization.

1252451351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21228048.

The product of its digits is 6000, while the sum is 29.

The square root of 1252451351 is about 35389.9894179131. The cubic root of 1252451351 is about 1077.9210552896.

Adding to 1252451351 its reverse (1531542521), we get a palindrome (2783993872).

The spelling of 1252451351 in words is "one billion, two hundred fifty-two million, four hundred fifty-one thousand, three hundred fifty-one".