1316251 has 2 divisors, whose sum is σ = 1316252. Its totient is φ = 1316250.

The previous prime is 1316239. The next prime is 1316257. The reversal of 1316251 is 1526131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1316251 - 2¹⁷ = 1185179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1316257) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658125 + 658126.

It is an arithmetic number, because the mean of its divisors is an integer number (658126).

2^1316251 is an apocalyptic number.

1316251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316251 is an equidigital number, since it uses as much as digits as its factorization.

1316251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180, while the sum is 19.

The square root of 1316251 is about 1147.2798263719. The cubic root of 1316251 is about 109.5921813646.

The spelling of 1316251 in words is "one million, three hundred sixteen thousand, two hundred fifty-one".