12345149 has 2 divisors, whose sum is σ = 12345150. Its totient is φ = 12345148.

The previous prime is 12345143. The next prime is 12345163. The reversal of 12345149 is 94154321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7425625 + 4919524 = 2725^2 + 2218^2 .

It is a cyclic number.

It is not a de Polignac number, because 12345149 - 2¹² = 12341053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12345143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6172574 + 6172575.

It is an arithmetic number, because the mean of its divisors is an integer number (6172575).

Almost surely, 2^12345149 is an apocalyptic number.

It is an amenable number.

12345149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12345149 is an equidigital number, since it uses as much as digits as its factorization.

12345149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 12345149 is about 3513.5664217430. The cubic root of 12345149 is about 231.1171173259.

The spelling of 12345149 in words is "twelve million, three hundred forty-five thousand, one hundred forty-nine".