42201487 has 2 divisors, whose sum is σ = 42201488. Its totient is φ = 42201486.

The previous prime is 42201473. The next prime is 42201539. The reversal of 42201487 is 78410224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42201487 - 2⁷ = 42201359 is a prime.

It is a super-2 number, since 2×42201487² = 3561931010022338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42201437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21100743 + 21100744.

It is an arithmetic number, because the mean of its divisors is an integer number (21100744).

Almost surely, 2^42201487 is an apocalyptic number.

42201487 is a deficient number, since it is larger than the sum of its proper divisors (1).

42201487 is an equidigital number, since it uses as much as digits as its factorization.

42201487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 42201487 is about 6496.2671589152. The cubic root of 42201487 is about 348.1576305088.

The spelling of 42201487 in words is "forty-two million, two hundred one thousand, four hundred eighty-seven".