315236783 has 2 divisors, whose sum is σ = 315236784. Its totient is φ = 315236782.

The previous prime is 315236683. The next prime is 315236807. The reversal of 315236783 is 387632513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315236783 - 2²⁸ = 46801327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315236683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157618391 + 157618392.

It is an arithmetic number, because the mean of its divisors is an integer number (157618392).

Almost surely, 2^315236783 is an apocalyptic number.

315236783 is a deficient number, since it is larger than the sum of its proper divisors (1).

315236783 is an equidigital number, since it uses as much as digits as its factorization.

315236783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 315236783 is about 17754.9087015394. The cubic root of 315236783 is about 680.5796549636.

The spelling of 315236783 in words is "three hundred fifteen million, two hundred thirty-six thousand, seven hundred eighty-three".