12254149 has 4 divisors (see below), whose sum is σ = 12317836. Its totient is φ = 12190464.

The previous prime is 12254131. The next prime is 12254167. The reversal of 12254149 is 94145221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94145221 = 521 ⋅180701.

It is an interprime number because it is at equal distance from previous prime (12254131) and next prime (12254167).

It can be written as a sum of positive squares in 2 ways, for example, as 1397124 + 10857025 = 1182^2 + 3295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12254149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12254189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31554 + ... + 31939.

It is an arithmetic number, because the mean of its divisors is an integer number (3079459).

Almost surely, 2^12254149 is an apocalyptic number.

It is an amenable number.

12254149 is a deficient number, since it is larger than the sum of its proper divisors (63687).

12254149 is an equidigital number, since it uses as much as digits as its factorization.

12254149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63686.

The product of its digits is 2880, while the sum is 28.

The square root of 12254149 is about 3500.5926641070. The cubic root of 12254149 is about 230.5478371077.

It can be divided in two parts, 12254 and 149, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 12254149 in words is "twelve million, two hundred fifty-four thousand, one hundred forty-nine".