12145401 has 12 divisors (see below), whose sum is σ = 17574960. Its totient is φ = 8082360.

The previous prime is 12145387. The next prime is 12145417. The reversal of 12145401 is 10454121.

12145401 is a `hidden beast` number, since 121 + 4 + 540 + 1 = 666.

It is not a de Polignac number, because 12145401 - 2¹¹ = 12143353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12145201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6946 + ... + 8516.

It is an arithmetic number, because the mean of its divisors is an integer number (1464580).

Almost surely, 2^12145401 is an apocalyptic number.

It is an amenable number.

12145401 is a deficient number, since it is larger than the sum of its proper divisors (5429559).

12145401 is a wasteful number, since it uses less digits than its factorization.

12145401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436 (or 2433 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 12145401 is about 3485.0252509846. The cubic root of 12145401 is about 229.8638198264.

Adding to 12145401 its reverse (10454121), we get a palindrome (22599522).

The spelling of 12145401 in words is "twelve million, one hundred forty-five thousand, four hundred one".