312130454 has 4 divisors (see below), whose sum is σ = 468195684. Its totient is φ = 156065226.

The previous prime is 312130453. The next prime is 312130459. The reversal of 312130454 is 454031213.

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

It is a super-2 number, since 2×312130454² = 194850840628492232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312130453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78032612 + ... + 78032615.

It is an arithmetic number, because the mean of its divisors is an integer number (117048921).

Almost surely, 2^312130454 is an apocalyptic number.

312130454 is a deficient number, since it is larger than the sum of its proper divisors (156065230).

312130454 is a wasteful number, since it uses less digits than its factorization.

312130454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156065229.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 312130454 is about 17667.2140984367. The cubic root of 312130454 is about 678.3368047253.

Adding to 312130454 its reverse (454031213), we get a palindrome (766161667).

The spelling of 312130454 in words is "three hundred twelve million, one hundred thirty thousand, four hundred fifty-four".