142191012535 has 48 divisors (see below), whose sum is σ = 202710398688. Its totient is φ = 95110836480.

The previous prime is 142191012521. The next prime is 142191012539. The reversal of 142191012535 is 535210191241.

It is not a de Polignac number, because 142191012535 - 2⁹ = 142191012023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142191012535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142191012539) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2145972 + ... + 2211238.

It is an arithmetic number, because the mean of its divisors is an integer number (4223133306).

Almost surely, 2^142191012535 is an apocalyptic number.

142191012535 is a deficient number, since it is larger than the sum of its proper divisors (60519386153).

142191012535 is a wasteful number, since it uses less digits than its factorization.

142191012535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65584 (or 65573 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 142191012535 in words is "one hundred forty-two billion, one hundred ninety-one million, twelve thousand, five hundred thirty-five".