191510560142 has 12 divisors (see below), whose sum is σ = 315755014848. Its totient is φ = 87050254500.

The previous prime is 191510560141. The next prime is 191510560147. The reversal of 191510560142 is 241065015191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191510560141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 395682734 + ... + 395683217.

It is an arithmetic number, because the mean of its divisors is an integer number (26312917904).

Almost surely, 2^191510560142 is an apocalyptic number.

191510560142 is a deficient number, since it is larger than the sum of its proper divisors (124244454706).

191510560142 is a wasteful number, since it uses less digits than its factorization.

191510560142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791365975 (or 791365964 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 35.

The spelling of 191510560142 in words is "one hundred ninety-one billion, five hundred ten million, five hundred sixty thousand, one hundred forty-two".