42167051 has 4 divisors (see below), whose sum is σ = 42184104. Its totient is φ = 42150000.

The previous prime is 42167039. The next prime is 42167101. The reversal of 42167051 is 15076124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42167051 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 42167051.

It is not an unprimeable number, because it can be changed into a prime (42167651) 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, 4025 + ... + 10026.

It is an arithmetic number, because the mean of its divisors is an integer number (10546026).

Almost surely, 2^42167051 is an apocalyptic number.

42167051 is a deficient number, since it is larger than the sum of its proper divisors (17053).

42167051 is a wasteful number, since it uses less digits than its factorization.

42167051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17052.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 42167051 is about 6493.6161728270. The cubic root of 42167051 is about 348.0629070010.

The spelling of 42167051 in words is "forty-two million, one hundred sixty-seven thousand, fifty-one".