42201547 has 2 divisors, whose sum is σ = 42201548. Its totient is φ = 42201546.

The previous prime is 42201541. The next prime is 42201557. The reversal of 42201547 is 74510224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42201547 - 2³ = 42201539 is a prime.

It is not a weakly prime, because it can be changed into another prime (42201541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21100773 + 21100774.

It is an arithmetic number, because the mean of its divisors is an integer number (21100774).

Almost surely, 2^42201547 is an apocalyptic number.

42201547 is a deficient number, since it is larger than the sum of its proper divisors (1).

42201547 is an equidigital number, since it uses as much as digits as its factorization.

42201547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 42201547 is about 6496.2717769502. The cubic root of 42201547 is about 348.1577955065.

The spelling of 42201547 in words is "forty-two million, two hundred one thousand, five hundred forty-seven".