42126347 has 2 divisors, whose sum is σ = 42126348. Its totient is φ = 42126346.

The previous prime is 42126341. The next prime is 42126353. The reversal of 42126347 is 74362124.

It is a balanced prime because it is at equal distance from previous prime (42126341) and next prime (42126353).

It is a cyclic number.

It is not a de Polignac number, because 42126347 - 2²² = 37932043 is a prime.

It is a super-2 number, since 2×42126347² = 3549258223128818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42126341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21063173 + 21063174.

It is an arithmetic number, because the mean of its divisors is an integer number (21063174).

Almost surely, 2^42126347 is an apocalyptic number.

42126347 is a deficient number, since it is larger than the sum of its proper divisors (1).

42126347 is an equidigital number, since it uses as much as digits as its factorization.

42126347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 29.

The square root of 42126347 is about 6490.4812610468. The cubic root of 42126347 is about 347.9508755029.

The spelling of 42126347 in words is "forty-two million, one hundred twenty-six thousand, three hundred forty-seven".