141551661 has 8 divisors (see below), whose sum is σ = 188805024. Its totient is φ = 94333040.

The previous prime is 141551633. The next prime is 141551681. The reversal of 141551661 is 166155141.

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 141551661 - 2¹⁰ = 141550637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141551621) 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, 3115 + ... + 17111.

It is an arithmetic number, because the mean of its divisors is an integer number (23600628).

Almost surely, 2^141551661 is an apocalyptic number.

It is an amenable number.

141551661 is a deficient number, since it is larger than the sum of its proper divisors (47253363).

141551661 is a wasteful number, since it uses less digits than its factorization.

141551661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17371.

The product of its digits is 3600, while the sum is 30.

The square root of 141551661 is about 11897.5485290038. The cubic root of 141551661 is about 521.1606974548.

The spelling of 141551661 in words is "one hundred forty-one million, five hundred fifty-one thousand, six hundred sixty-one".