42425147 has 2 divisors, whose sum is σ = 42425148. Its totient is φ = 42425146.

The previous prime is 42425113. The next prime is 42425171. The reversal of 42425147 is 74152424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42425147 - 2⁶ = 42425083 is a prime.

It is not a weakly prime, because it can be changed into another prime (42425177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21212573 + 21212574.

It is an arithmetic number, because the mean of its divisors is an integer number (21212574).

Almost surely, 2^42425147 is an apocalyptic number.

42425147 is a deficient number, since it is larger than the sum of its proper divisors (1).

42425147 is an equidigital number, since it uses as much as digits as its factorization.

42425147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 29.

The square root of 42425147 is about 6513.4589121296. The cubic root of 42425147 is about 348.7716039425.

The spelling of 42425147 in words is "forty-two million, four hundred twenty-five thousand, one hundred forty-seven".