42308527 has 2 divisors, whose sum is σ = 42308528. Its totient is φ = 42308526.

The previous prime is 42308491. The next prime is 42308531. The reversal of 42308527 is 72580324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42308527 is a prime.

It is a super-2 number, since 2×42308527² = 3580022913819458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42308927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21154263 + 21154264.

It is an arithmetic number, because the mean of its divisors is an integer number (21154264).

Almost surely, 2^42308527 is an apocalyptic number.

42308527 is a deficient number, since it is larger than the sum of its proper divisors (1).

42308527 is an equidigital number, since it uses as much as digits as its factorization.

42308527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 42308527 is about 6504.5005188715. The cubic root of 42308527 is about 348.4517380697.

The spelling of 42308527 in words is "forty-two million, three hundred eight thousand, five hundred twenty-seven".