4142045 has 4 divisors (see below), whose sum is σ = 4970460. Its totient is φ = 3313632.

The previous prime is 4142029. The next prime is 4142053. The reversal of 4142045 is 5402414.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5402414 = 2 ⋅2701207.

It can be written as a sum of positive squares in 2 ways, for example, as 948676 + 3193369 = 974^2 + 1787^2 .

It is a cyclic number.

It is not a de Polignac number, because 4142045 - 2⁴ = 4142029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414200 + ... + 414209.

It is an arithmetic number, because the mean of its divisors is an integer number (1242615).

Almost surely, 2^4142045 is an apocalyptic number.

It is an amenable number.

4142045 is a deficient number, since it is larger than the sum of its proper divisors (828415).

4142045 is an equidigital number, since it uses as much as digits as its factorization.

4142045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828414.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 4142045 is about 2035.2014642290. The cubic root of 4142045 is about 160.5973116137.

Adding to 4142045 its reverse (5402414), we get a palindrome (9544459).

The spelling of 4142045 in words is "four million, one hundred forty-two thousand, forty-five".