4512155 has 8 divisors (see below), whose sum is σ = 5517072. Its totient is φ = 3541408.

The previous prime is 4512133. The next prime is 4512161. The reversal of 4512155 is 5512154.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4512155 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4512155.

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, 8249 + ... + 8778.

It is an arithmetic number, because the mean of its divisors is an integer number (689634).

Almost surely, 2^4512155 is an apocalyptic number.

4512155 is a deficient number, since it is larger than the sum of its proper divisors (1004917).

4512155 is a wasteful number, since it uses less digits than its factorization.

4512155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17085.

The product of its digits is 1000, while the sum is 23.

The square root of 4512155 is about 2124.1833724987. The cubic root of 4512155 is about 165.2448766801.

Subtracting 4512155 from its reverse (5512154), we obtain a palindrome (999999).

The spelling of 4512155 in words is "four million, five hundred twelve thousand, one hundred fifty-five".