141805231 has 2 divisors, whose sum is σ = 141805232. Its totient is φ = 141805230.

The previous prime is 141805199. The next prime is 141805241. The reversal of 141805231 is 132508141.

It is a strong prime.

It is an emirp because it is prime and its reverse (132508141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 141805231 - 2⁵ = 141805199 is a prime.

It is a super-2 number, since 2×141805231² = 40217447077926722, which contains 22 as substring.

It is equal to p_8008234 and since 141805231 and 8008234 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 141805196 and 141805205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141805241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70902615 + 70902616.

It is an arithmetic number, because the mean of its divisors is an integer number (70902616).

Almost surely, 2^141805231 is an apocalyptic number.

141805231 is a deficient number, since it is larger than the sum of its proper divisors (1).

141805231 is an equidigital number, since it uses as much as digits as its factorization.

141805231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 141805231 is about 11908.2001578744. The cubic root of 141805231 is about 521.4717073144.

The spelling of 141805231 in words is "one hundred forty-one million, eight hundred five thousand, two hundred thirty-one".