42437147 has 2 divisors, whose sum is σ = 42437148. Its totient is φ = 42437146.

The previous prime is 42437119. The next prime is 42437159. The reversal of 42437147 is 74173424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42437147 - 2¹² = 42433051 is a prime.

It is a super-2 number, since 2×42437147² = 3601822890999218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42487147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21218573 + 21218574.

It is an arithmetic number, because the mean of its divisors is an integer number (21218574).

Almost surely, 2^42437147 is an apocalyptic number.

42437147 is a deficient number, since it is larger than the sum of its proper divisors (1).

42437147 is an equidigital number, since it uses as much as digits as its factorization.

42437147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 32.

The square root of 42437147 is about 6514.3800165480. The cubic root of 42437147 is about 348.8044843213.

The spelling of 42437147 in words is "forty-two million, four hundred thirty-seven thousand, one hundred forty-seven".