42769147 has 2 divisors, whose sum is σ = 42769148. Its totient is φ = 42769146.

The previous prime is 42769141. The next prime is 42769163. The reversal of 42769147 is 74196724.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42769147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42769141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21384573 + 21384574.

It is an arithmetic number, because the mean of its divisors is an integer number (21384574).

Almost surely, 2^42769147 is an apocalyptic number.

42769147 is a deficient number, since it is larger than the sum of its proper divisors (1).

42769147 is an equidigital number, since it uses as much as digits as its factorization.

42769147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 42769147 is about 6539.8124590847. The cubic root of 42769147 is about 349.7117272591.

The spelling of 42769147 in words is "forty-two million, seven hundred sixty-nine thousand, one hundred forty-seven".