42286549 has 2 divisors, whose sum is σ = 42286550. Its totient is φ = 42286548.

The previous prime is 42286499. The next prime is 42286561. The reversal of 42286549 is 94568224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40870449 + 1416100 = 6393^2 + 1190^2 .

It is a cyclic number.

It is not a de Polignac number, because 42286549 - 2¹⁹ = 41762261 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42286649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21143274 + 21143275.

It is an arithmetic number, because the mean of its divisors is an integer number (21143275).

Almost surely, 2^42286549 is an apocalyptic number.

It is an amenable number.

42286549 is a deficient number, since it is larger than the sum of its proper divisors (1).

42286549 is an equidigital number, since it uses as much as digits as its factorization.

42286549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 40.

The square root of 42286549 is about 6502.8108537770. The cubic root of 42286549 is about 348.3913909064.

The spelling of 42286549 in words is "forty-two million, two hundred eighty-six thousand, five hundred forty-nine".