141664687 has 4 divisors (see below), whose sum is σ = 142203600. Its totient is φ = 141125776.

The previous prime is 141664673. The next prime is 141664693. The reversal of 141664687 is 786466141.

141664687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786466141 = 41 ⋅19182101.

It is a cyclic number.

It is not a de Polignac number, because 141664687 - 2⁷ = 141664559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141664657) 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, 269062 + ... + 269587.

It is an arithmetic number, because the mean of its divisors is an integer number (35550900).

Almost surely, 2^141664687 is an apocalyptic number.

141664687 is a deficient number, since it is larger than the sum of its proper divisors (538913).

141664687 is an equidigital number, since it uses as much as digits as its factorization.

141664687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538912.

The product of its digits is 193536, while the sum is 43.

The square root of 141664687 is about 11902.2975513134. The cubic root of 141664687 is about 521.2993724739.

The spelling of 141664687 in words is "one hundred forty-one million, six hundred sixty-four thousand, six hundred eighty-seven".