141691687 has 8 divisors (see below), whose sum is σ = 142836512. Its totient is φ = 140551200.

The previous prime is 141691663. The next prime is 141691691. The reversal of 141691687 is 786196141.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 141691687 - 2⁷ = 141691559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141691387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97198 + ... + 98644.

It is an arithmetic number, because the mean of its divisors is an integer number (17854564).

Almost surely, 2^141691687 is an apocalyptic number.

141691687 is a deficient number, since it is larger than the sum of its proper divisors (1144825).

141691687 is a wasteful number, since it uses less digits than its factorization.

141691687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169.

The product of its digits is 72576, while the sum is 43.

The square root of 141691687 is about 11903.4317320679. The cubic root of 141691687 is about 521.3324886754.

The spelling of 141691687 in words is "one hundred forty-one million, six hundred ninety-one thousand, six hundred eighty-seven".