315154157 has 2 divisors, whose sum is σ = 315154158. Its totient is φ = 315154156.

The previous prime is 315154127. The next prime is 315154163. The reversal of 315154157 is 751451513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291931396 + 23222761 = 17086^2 + 4819^2 .

It is a cyclic number.

It is not a de Polignac number, because 315154157 - 2⁶ = 315154093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315154117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157577078 + 157577079.

It is an arithmetic number, because the mean of its divisors is an integer number (157577079).

Almost surely, 2^315154157 is an apocalyptic number.

It is an amenable number.

315154157 is a deficient number, since it is larger than the sum of its proper divisors (1).

315154157 is an equidigital number, since it uses as much as digits as its factorization.

315154157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10500, while the sum is 32.

The square root of 315154157 is about 17752.5816995726. The cubic root of 315154157 is about 680.5201880365.

The spelling of 315154157 in words is "three hundred fifteen million, one hundred fifty-four thousand, one hundred fifty-seven".