12148511 has 2 divisors, whose sum is σ = 12148512. Its totient is φ = 12148510.

The previous prime is 12148483. The next prime is 12148537. The reversal of 12148511 is 11584121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12148511 - 2¹⁸ = 11886367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12148561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6074255 + 6074256.

It is an arithmetic number, because the mean of its divisors is an integer number (6074256).

Almost surely, 2^12148511 is an apocalyptic number.

12148511 is a deficient number, since it is larger than the sum of its proper divisors (1).

12148511 is an equidigital number, since it uses as much as digits as its factorization.

12148511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 320, while the sum is 23.

The square root of 12148511 is about 3485.4714171830. The cubic root of 12148511 is about 229.8834381019.

The spelling of 12148511 in words is "twelve million, one hundred forty-eight thousand, five hundred eleven".