315130043 has 4 divisors (see below), whose sum is σ = 318670920. Its totient is φ = 311589168.

The previous prime is 315130031. The next prime is 315130051. The reversal of 315130043 is 340031513.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340031513 = 389 ⋅874117.

It is a cyclic number.

It is not a de Polignac number, because 315130043 - 2⁴ = 315130027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315129997 and 315130024.

It is not an unprimeable number, because it can be changed into a prime (315130093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1770305 + ... + 1770482.

It is an arithmetic number, because the mean of its divisors is an integer number (79667730).

Almost surely, 2^315130043 is an apocalyptic number.

315130043 is a deficient number, since it is larger than the sum of its proper divisors (3540877).

315130043 is an equidigital number, since it uses as much as digits as its factorization.

315130043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540876.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 315130043 is about 17751.9025177585. The cubic root of 315130043 is about 680.5028309410.

Adding to 315130043 its reverse (340031513), we get a palindrome (655161556).

The spelling of 315130043 in words is "three hundred fifteen million, one hundred thirty thousand, forty-three".