4187145 has 8 divisors (see below), whose sum is σ = 6699456. Its totient is φ = 2233136.

The previous prime is 4187137. The next prime is 4187147. The reversal of 4187145 is 5417814.

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 4187145 - 2³ = 4187137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4187147) 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, 139557 + ... + 139586.

It is an arithmetic number, because the mean of its divisors is an integer number (837432).

Almost surely, 2^4187145 is an apocalyptic number.

It is an amenable number.

4187145 is a deficient number, since it is larger than the sum of its proper divisors (2512311).

4187145 is a wasteful number, since it uses less digits than its factorization.

4187145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279151.

The product of its digits is 4480, while the sum is 30.

The square root of 4187145 is about 2046.2514508242. The cubic root of 4187145 is about 161.1780882400.

The spelling of 4187145 in words is "four million, one hundred eighty-seven thousand, one hundred forty-five".