42294523 has 2 divisors, whose sum is σ = 42294524. Its totient is φ = 42294522.

The previous prime is 42294479. The next prime is 42294569. The reversal of 42294523 is 32549224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42294523 - 2¹³ = 42286331 is a prime.

It is not a weakly prime, because it can be changed into another prime (42294023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21147261 + 21147262.

It is an arithmetic number, because the mean of its divisors is an integer number (21147262).

Almost surely, 2^42294523 is an apocalyptic number.

42294523 is a deficient number, since it is larger than the sum of its proper divisors (1).

42294523 is an equidigital number, since it uses as much as digits as its factorization.

42294523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 31.

The square root of 42294523 is about 6503.4239443542. The cubic root of 42294523 is about 348.4132883215.

The spelling of 42294523 in words is "forty-two million, two hundred ninety-four thousand, five hundred twenty-three".