42123167 has 6 divisors (see below), whose sum is σ = 43626648. Its totient is φ = 40669832.

The previous prime is 42123157. The next prime is 42123173. The reversal of 42123167 is 76132124.

It is not a de Polignac number, because 42123167 - 2¹² = 42119071 is a prime.

It is a super-2 number, since 2×42123167² = 3548722396219778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42123157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24203 + ... + 25884.

It is an arithmetic number, because the mean of its divisors is an integer number (7271108).

Almost surely, 2^42123167 is an apocalyptic number.

42123167 is a deficient number, since it is larger than the sum of its proper divisors (1503481).

42123167 is an equidigital number, since it uses as much as digits as its factorization.

42123167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50145 (or 50116 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 42123167 is about 6490.2362822936. The cubic root of 42123167 is about 347.9421200035.

The spelling of 42123167 in words is "forty-two million, one hundred twenty-three thousand, one hundred sixty-seven".