12042545 has 8 divisors (see below), whose sum is σ = 15301224. Its totient is φ = 9067264.

The previous prime is 12042517. The next prime is 12042551. The reversal of 12042545 is 54524021.

It is a happy number.

12042545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 564001 + 11478544 = 751^2 + 3388^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12042545 - 2¹⁰ = 12041521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12042545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70754 + ... + 70923.

It is an arithmetic number, because the mean of its divisors is an integer number (1912653).

Almost surely, 2^12042545 is an apocalyptic number.

It is an amenable number.

12042545 is a deficient number, since it is larger than the sum of its proper divisors (3258679).

12042545 is a wasteful number, since it uses less digits than its factorization.

12042545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141699.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 12042545 is about 3470.2370236052. The cubic root of 12042545 is about 229.2130953130.

Adding to 12042545 its reverse (54524021), we get a palindrome (66566566).

The spelling of 12042545 in words is "twelve million, forty-two thousand, five hundred forty-five".