42367139 has 2 divisors, whose sum is σ = 42367140. Its totient is φ = 42367138.

The previous prime is 42367121. The next prime is 42367151. The reversal of 42367139 is 93176324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42367139 - 2¹² = 42363043 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42367099 and 42367108.

It is not a weakly prime, because it can be changed into another prime (42367189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21183569 + 21183570.

It is an arithmetic number, because the mean of its divisors is an integer number (21183570).

Almost surely, 2^42367139 is an apocalyptic number.

42367139 is a deficient number, since it is larger than the sum of its proper divisors (1).

42367139 is an equidigital number, since it uses as much as digits as its factorization.

42367139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 35.

The square root of 42367139 is about 6509.0044553680. The cubic root of 42367139 is about 348.6125727034.

The spelling of 42367139 in words is "forty-two million, three hundred sixty-seven thousand, one hundred thirty-nine".