1314191969 has 2 divisors, whose sum is σ = 1314191970. Its totient is φ = 1314191968.

The previous prime is 1314191951. The next prime is 1314191993. The reversal of 1314191969 is 9691914131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1310440000 + 3751969 = 36200^2 + 1937^2 .

It is a cyclic number.

It is not a de Polignac number, because 1314191969 - 2⁸ = 1314191713 is a prime.

It is a super-2 number, since 2×1314191969² = 3454201062768193922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1314191569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657095984 + 657095985.

It is an arithmetic number, because the mean of its divisors is an integer number (657095985).

Almost surely, 2^1314191969 is an apocalyptic number.

It is an amenable number.

1314191969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1314191969 is an equidigital number, since it uses as much as digits as its factorization.

1314191969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 44.

The square root of 1314191969 is about 36251.7857353262. The cubic root of 1314191969 is about 1095.3500598144.

The spelling of 1314191969 in words is "one billion, three hundred fourteen million, one hundred ninety-one thousand, nine hundred sixty-nine".