4145522 has 8 divisors (see below), whose sum is σ = 6236076. Its totient is φ = 2066832.

The previous prime is 4145509. The next prime is 4145527. The reversal of 4145522 is 2255414.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3798601 + 346921 = 1949^2 + 589^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4145527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033 + ... + 3524.

Almost surely, 2^4145522 is an apocalyptic number.

4145522 is a deficient number, since it is larger than the sum of its proper divisors (2090554).

4145522 is a wasteful number, since it uses less digits than its factorization.

4145522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5932.

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

The square root of 4145522 is about 2036.0555002259. The cubic root of 4145522 is about 160.6422363371.

The spelling of 4145522 in words is "four million, one hundred forty-five thousand, five hundred twenty-two".