4040142515 has 4 divisors (see below), whose sum is σ = 4848171024. Its totient is φ = 3232114008.

The previous prime is 4040142499. The next prime is 4040142523. The reversal of 4040142515 is 5152410404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4040142515 - 2⁴ = 4040142499 is a prime.

It is a Duffinian 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, 404014247 + ... + 404014256.

It is an arithmetic number, because the mean of its divisors is an integer number (1212042756).

Almost surely, 2^4040142515 is an apocalyptic number.

4040142515 is a deficient number, since it is larger than the sum of its proper divisors (808028509).

4040142515 is an equidigital number, since it uses as much as digits as its factorization.

4040142515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808028508.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 4040142515 is about 63562.1154068994. The cubic root of 4040142515 is about 1592.6935758650.

Adding to 4040142515 its reverse (5152410404), we get a palindrome (9192552919).

The spelling of 4040142515 in words is "four billion, forty million, one hundred forty-two thousand, five hundred fifteen".