312019473 has 8 divisors (see below), whose sum is σ = 416297728. Its totient is φ = 207877104.

The previous prime is 312019423. The next prime is 312019489. The reversal of 312019473 is 374910213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312019473 - 2⁸ = 312019217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312019473.

It is not an unprimeable number, because it can be changed into a prime (312019423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28486 + ... + 37887.

It is an arithmetic number, because the mean of its divisors is an integer number (52037216).

Almost surely, 2^312019473 is an apocalyptic number.

It is an amenable number.

312019473 is a deficient number, since it is larger than the sum of its proper divisors (104278255).

312019473 is a wasteful number, since it uses less digits than its factorization.

312019473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67943.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 312019473 is about 17664.0729448222. The cubic root of 312019473 is about 678.2563987923.

Adding to 312019473 its reverse (374910213), we get a palindrome (686929686).

The spelling of 312019473 in words is "three hundred twelve million, nineteen thousand, four hundred seventy-three".