142069471 has 2 divisors, whose sum is σ = 142069472. Its totient is φ = 142069470.

The previous prime is 142069453. The next prime is 142069507. The reversal of 142069471 is 174960241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142069471 - 2⁹ = 142068959 is a prime.

It is a super-3 number, since 3×142069471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142069171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71034735 + 71034736.

It is an arithmetic number, because the mean of its divisors is an integer number (71034736).

Almost surely, 2^142069471 is an apocalyptic number.

142069471 is a deficient number, since it is larger than the sum of its proper divisors (1).

142069471 is an equidigital number, since it uses as much as digits as its factorization.

142069471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 142069471 is about 11919.2898697867. The cubic root of 142069471 is about 521.7954099572.

The spelling of 142069471 in words is "one hundred forty-two million, sixty-nine thousand, four hundred seventy-one".