1312542454 has 4 divisors (see below), whose sum is σ = 1968813684. Its totient is φ = 656271226.

The previous prime is 1312542391. The next prime is 1312542461. The reversal of 1312542454 is 4542452131.

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

It is a super-3 number, since 3×1312542454³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328135612 + ... + 328135615.

It is an arithmetic number, because the mean of its divisors is an integer number (492203421).

Almost surely, 2^1312542454 is an apocalyptic number.

1312542454 is a deficient number, since it is larger than the sum of its proper divisors (656271230).

1312542454 is an equidigital number, since it uses as much as digits as its factorization.

1312542454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656271229.

The product of its digits is 19200, while the sum is 31.

The square root of 1312542454 is about 36229.0277816008. The cubic root of 1312542454 is about 1094.8915898038.

Adding to 1312542454 its reverse (4542452131), we get a palindrome (5854994585).

The spelling of 1312542454 in words is "one billion, three hundred twelve million, five hundred forty-two thousand, four hundred fifty-four".