141961231 has 2 divisors, whose sum is σ = 141961232. Its totient is φ = 141961230.

The previous prime is 141961201. The next prime is 141961243. The reversal of 141961231 is 132169141.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 141961231 - 2⁵ = 141961199 is a prime.

It is a super-2 number, since 2×141961231² = 40305982214070722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 141961231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141961201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70980615 + 70980616.

It is an arithmetic number, because the mean of its divisors is an integer number (70980616).

Almost surely, 2^141961231 is an apocalyptic number.

141961231 is a deficient number, since it is larger than the sum of its proper divisors (1).

141961231 is an equidigital number, since it uses as much as digits as its factorization.

141961231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 28.

The square root of 141961231 is about 11914.7484656622. The cubic root of 141961231 is about 521.6628609906.

The spelling of 141961231 in words is "one hundred forty-one million, nine hundred sixty-one thousand, two hundred thirty-one".