42163515 has 12 divisors (see below), whose sum is σ = 73083504. Its totient is φ = 22487184.

The previous prime is 42163487. The next prime is 42163549. The reversal of 42163515 is 51536124.

42163515 is a `hidden beast` number, since 4 + 21 + 635 + 1 + 5 = 666.

It is not a de Polignac number, because 42163515 - 2⁸ = 42163259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 468439 + ... + 468528.

It is an arithmetic number, because the mean of its divisors is an integer number (6090292).

Almost surely, 2^42163515 is an apocalyptic number.

42163515 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42163515 is a deficient number, since it is larger than the sum of its proper divisors (30919989).

42163515 is a wasteful number, since it uses less digits than its factorization.

42163515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936978 (or 936975 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 42163515 is about 6493.3438997176. The cubic root of 42163515 is about 348.0531775652.

Adding to 42163515 its reverse (51536124), we get a palindrome (93699639).

It can be divided in two parts, 421 and 63515, that added together give a palindrome (63936).

The spelling of 42163515 in words is "forty-two million, one hundred sixty-three thousand, five hundred fifteen".