42234971 has 2 divisors, whose sum is σ = 42234972. Its totient is φ = 42234970.

The previous prime is 42234949. The next prime is 42234977. The reversal of 42234971 is 17943224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42234971 - 2¹⁴ = 42218587 is a prime.

It is not a weakly prime, because it can be changed into another prime (42234977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21117485 + 21117486.

It is an arithmetic number, because the mean of its divisors is an integer number (21117486).

Almost surely, 2^42234971 is an apocalyptic number.

42234971 is a deficient number, since it is larger than the sum of its proper divisors (1).

42234971 is an equidigital number, since it uses as much as digits as its factorization.

42234971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 42234971 is about 6498.8438202499. The cubic root of 42234971 is about 348.2496859401.

The spelling of 42234971 in words is "forty-two million, two hundred thirty-four thousand, nine hundred seventy-one".