42160451 has 4 divisors (see below), whose sum is σ = 42187992. Its totient is φ = 42132912.

The previous prime is 42160441. The next prime is 42160471. The reversal of 42160451 is 15406124.

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 42160451 - 2²² = 37966147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42160421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11330 + ... + 14583.

It is an arithmetic number, because the mean of its divisors is an integer number (10546998).

Almost surely, 2^42160451 is an apocalyptic number.

42160451 is a deficient number, since it is larger than the sum of its proper divisors (27541).

42160451 is a wasteful number, since it uses less digits than its factorization.

42160451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27540.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 42160451 is about 6493.1079615235. The cubic root of 42160451 is about 348.0447464151.

Adding to 42160451 its reverse (15406124), we get a palindrome (57566575).

The spelling of 42160451 in words is "forty-two million, one hundred sixty thousand, four hundred fifty-one".