141959191 has 4 divisors (see below), whose sum is σ = 154864584. Its totient is φ = 129053800.

The previous prime is 141959189. The next prime is 141959201. The reversal of 141959191 is 191959141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 191959141 = 11 ⋅17450831.

It is a cyclic number.

It is not a de Polignac number, because 141959191 - 2¹ = 141959189 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 (141950191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6452680 + ... + 6452701.

It is an arithmetic number, because the mean of its divisors is an integer number (38716146).

Almost surely, 2^141959191 is an apocalyptic number.

141959191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

141959191 is a deficient number, since it is larger than the sum of its proper divisors (12905393).

141959191 is a wasteful number, since it uses less digits than its factorization.

141959191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12905392.

The product of its digits is 14580, while the sum is 40.

The square root of 141959191 is about 11914.6628571689. The cubic root of 141959191 is about 521.6603621926.

The spelling of 141959191 in words is "one hundred forty-one million, nine hundred fifty-nine thousand, one hundred ninety-one".