12154745 has 16 divisors (see below), whose sum is σ = 15562368. Its totient is φ = 9081600.

The previous prime is 12154739. The next prime is 12154757. The reversal of 12154745 is 54745121.

It is not a de Polignac number, because 12154745 - 2⁸ = 12154489 is a prime.

It is a Duffinian number.

Its product of digits (5600) is a multiple of the sum of its prime divisors (1120).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12362 + ... + 13308.

It is an arithmetic number, because the mean of its divisors is an integer number (972648).

Almost surely, 2^12154745 is an apocalyptic number.

It is an amenable number.

12154745 is a deficient number, since it is larger than the sum of its proper divisors (3407623).

12154745 is a wasteful number, since it uses less digits than its factorization.

12154745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120.

The product of its digits is 5600, while the sum is 29.

The square root of 12154745 is about 3486.3655861083. The cubic root of 12154745 is about 229.9227528869.

Adding to 12154745 its reverse (54745121), we get a palindrome (66899866).

The spelling of 12154745 in words is "twelve million, one hundred fifty-four thousand, seven hundred forty-five".