1312545453 has 16 divisors (see below), whose sum is σ = 1788998400. Its totient is φ = 855597056.

The previous prime is 1312545449. The next prime is 1312545557. The reversal of 1312545453 is 3545452131.

It is a cyclic number.

It is not a de Polignac number, because 1312545453 - 2² = 1312545449 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312545413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167773 + ... + 175421.

It is an arithmetic number, because the mean of its divisors is an integer number (111812400).

Almost surely, 2^1312545453 is an apocalyptic number.

It is an amenable number.

1312545453 is a deficient number, since it is larger than the sum of its proper divisors (476452947).

1312545453 is a wasteful number, since it uses less digits than its factorization.

1312545453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8916.

The product of its digits is 36000, while the sum is 33.

The square root of 1312545453 is about 36229.0691710400. The cubic root of 1312545453 is about 1094.8924237012.

Adding to 1312545453 its reverse (3545452131), we get a palindrome (4857997584).

The spelling of 1312545453 in words is "one billion, three hundred twelve million, five hundred forty-five thousand, four hundred fifty-three".