4012145 has 8 divisors (see below), whose sum is σ = 4826304. Its totient is φ = 3201904.

The previous prime is 4012133. The next prime is 4012147. The reversal of 4012145 is 5412104.

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 4012145 - 2⁶ = 4012081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4012147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2252 + ... + 3618.

It is an arithmetic number, because the mean of its divisors is an integer number (603288).

Almost surely, 2^4012145 is an apocalyptic number.

It is an amenable number.

4012145 is a deficient number, since it is larger than the sum of its proper divisors (814159).

4012145 is a wasteful number, since it uses less digits than its factorization.

4012145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 4012145 is about 2003.0339487887. The cubic root of 4012145 is about 158.9006010858.

Adding to 4012145 its reverse (5412104), we get a palindrome (9424249).

The spelling of 4012145 in words is "four million, twelve thousand, one hundred forty-five".