12750091 has 2 divisors, whose sum is σ = 12750092. Its totient is φ = 12750090.

The previous prime is 12750071. The next prime is 12750103. The reversal of 12750091 is 19005721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12750091 - 2¹⁵ = 12717323 is a prime.

It is not a weakly prime, because it can be changed into another prime (12750011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6375045 + 6375046.

It is an arithmetic number, because the mean of its divisors is an integer number (6375046).

Almost surely, 2^12750091 is an apocalyptic number.

12750091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12750091 is an equidigital number, since it uses as much as digits as its factorization.

12750091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 12750091 is about 3570.7269567975. The cubic root of 12750091 is about 233.6169922098.

The spelling of 12750091 in words is "twelve million, seven hundred fifty thousand, ninety-one".