141551591 has 8 divisors (see below), whose sum is σ = 148324704. Its totient is φ = 134830080.

The previous prime is 141551587. The next prime is 141551617. The reversal of 141551591 is 195155141.

It is a happy number.

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 141551591 - 2² = 141551587 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 (141551191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7226 + ... + 18311.

It is an arithmetic number, because the mean of its divisors is an integer number (18540588).

Almost surely, 2^141551591 is an apocalyptic number.

141551591 is a deficient number, since it is larger than the sum of its proper divisors (6773113).

141551591 is a wasteful number, since it uses less digits than its factorization.

141551591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25801.

The product of its digits is 4500, while the sum is 32.

The square root of 141551591 is about 11897.5455872209. The cubic root of 141551591 is about 521.1606115468.

The spelling of 141551591 in words is "one hundred forty-one million, five hundred fifty-one thousand, five hundred ninety-one".