4015542043 has 6 divisors (see below), whose sum is σ = 4158784604. Its totient is φ = 3877074264.

The previous prime is 4015542019. The next prime is 4015542049. The reversal of 4015542043 is 3402455104.

It is a de Polignac number, because none of the positive numbers 2^k-4015542043 is a prime.

It is a super-2 number, since 2×4015542043² = 32249155798201227698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4015542049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2386521 + ... + 2388202.

Almost surely, 2^4015542043 is an apocalyptic number.

4015542043 is a deficient number, since it is larger than the sum of its proper divisors (143242561).

4015542043 is an equidigital number, since it uses as much as digits as its factorization.

4015542043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774781 (or 4774752 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 4015542043 is about 63368.3047193153. The cubic root of 4015542043 is about 1589.4543495074.

Adding to 4015542043 its reverse (3402455104), we get a palindrome (7417997147).

The spelling of 4015542043 in words is "four billion, fifteen million, five hundred forty-two thousand, forty-three".