315145423 has 2 divisors, whose sum is σ = 315145424. Its totient is φ = 315145422.

The previous prime is 315145417. The next prime is 315145429. The reversal of 315145423 is 324541513.

It is a balanced prime because it is at equal distance from previous prime (315145417) and next prime (315145429).

It is a cyclic number.

It is not a de Polignac number, because 315145423 - 2⁹ = 315144911 is a prime.

It is equal to p_17027443 and since 315145423 and 17027443 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 315145391 and 315145400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315145429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157572711 + 157572712.

It is an arithmetic number, because the mean of its divisors is an integer number (157572712).

Almost surely, 2^315145423 is an apocalyptic number.

315145423 is a deficient number, since it is larger than the sum of its proper divisors (1).

315145423 is an equidigital number, since it uses as much as digits as its factorization.

315145423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 315145423 is about 17752.3357054783. The cubic root of 315145423 is about 680.5139014641.

Adding to 315145423 its reverse (324541513), we get a palindrome (639686936).

The spelling of 315145423 in words is "three hundred fifteen million, one hundred forty-five thousand, four hundred twenty-three".