1252144454 has 16 divisors (see below), whose sum is σ = 2104342416. Its totient is φ = 553773600.

The previous prime is 1252144447. The next prime is 1252144459. The reversal of 1252144454 is 4544412521.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252144454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252144459) 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 7 ways as a sum of consecutive naturals, for example, 768317 + ... + 769944.

It is an arithmetic number, because the mean of its divisors is an integer number (131521401).

Almost surely, 2^1252144454 is an apocalyptic number.

1252144454 is a deficient number, since it is larger than the sum of its proper divisors (852197962).

1252144454 is a wasteful number, since it uses less digits than its factorization.

1252144454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538311.

The product of its digits is 25600, while the sum is 32.

The square root of 1252144454 is about 35385.6532227399. The cubic root of 1252144454 is about 1077.8330045609.

Adding to 1252144454 its reverse (4544412521), we get a palindrome (5796556975).

The spelling of 1252144454 in words is "one billion, two hundred fifty-two million, one hundred forty-four thousand, four hundred fifty-four".