142830775471 has 4 divisors (see below), whose sum is σ = 142833166912. Its totient is φ = 142828384032.

The previous prime is 142830775469. The next prime is 142830775489. The reversal of 142830775471 is 174577038241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142830775471 - 2¹ = 142830775469 is a prime.

It is a super-3 number, since 3×142830775471³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142830775411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103775 + ... + 1226368.

It is an arithmetic number, because the mean of its divisors is an integer number (35708291728).

Almost surely, 2^142830775471 is an apocalyptic number.

142830775471 is a deficient number, since it is larger than the sum of its proper divisors (2391441).

142830775471 is an equidigital number, since it uses as much as digits as its factorization.

142830775471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391440.

The product of its (nonzero) digits is 1317120, while the sum is 49.

The spelling of 142830775471 in words is "one hundred forty-two billion, eight hundred thirty million, seven hundred seventy-five thousand, four hundred seventy-one".