12145254 has 24 divisors (see below), whose sum is σ = 26701080. Its totient is φ = 3680160.

The previous prime is 12145241. The next prime is 12145261. The reversal of 12145254 is 45254121.

12145254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7639 + ... + 9090.

It is an arithmetic number, because the mean of its divisors is an integer number (1112545).

Almost surely, 2^12145254 is an apocalyptic number.

12145254 is an abundant number, since it is smaller than the sum of its proper divisors (14555826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12145254 is a wasteful number, since it uses less digits than its factorization.

12145254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16756 (or 16745 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 12145254 is about 3485.0041606862. The cubic root of 12145254 is about 229.8628924488.

Adding to 12145254 its reverse (45254121), we get a palindrome (57399375).

The spelling of 12145254 in words is "twelve million, one hundred forty-five thousand, two hundred fifty-four".