42163451 has 16 divisors (see below), whose sum is σ = 51269760. Its totient is φ = 34174080.

The previous prime is 42163423. The next prime is 42163463. The reversal of 42163451 is 15436124.

It is not a de Polignac number, because 42163451 - 2¹⁴ = 42147067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42163451.

It is not an unprimeable number, because it can be changed into a prime (42163151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2381 + ... + 9486.

It is an arithmetic number, because the mean of its divisors is an integer number (3204360).

Almost surely, 2^42163451 is an apocalyptic number.

42163451 is a deficient number, since it is larger than the sum of its proper divisors (9106309).

42163451 is a wasteful number, since it uses less digits than its factorization.

42163451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11914.

The product of its digits is 2880, while the sum is 26.

The square root of 42163451 is about 6493.3389715924. The cubic root of 42163451 is about 348.0530014618.

Adding to 42163451 its reverse (15436124), we get a palindrome (57599575).

It can be divided in two parts, 4216 and 3451, that added together give a palindrome (7667).

The spelling of 42163451 in words is "forty-two million, one hundred sixty-three thousand, four hundred fifty-one".