141891587 has 2 divisors, whose sum is σ = 141891588. Its totient is φ = 141891586.

The previous prime is 141891569. The next prime is 141891593. The reversal of 141891587 is 785198141.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 141891587 - 2¹⁸ = 141629443 is a prime.

It is a super-2 number, since 2×141891587² = 40266444922757138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (141891517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70945793 + 70945794.

It is an arithmetic number, because the mean of its divisors is an integer number (70945794).

Almost surely, 2^141891587 is an apocalyptic number.

141891587 is a deficient number, since it is larger than the sum of its proper divisors (1).

141891587 is an equidigital number, since it uses as much as digits as its factorization.

141891587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 44.

The square root of 141891587 is about 11911.8255108107. The cubic root of 141891587 is about 521.5775404404.

The spelling of 141891587 in words is "one hundred forty-one million, eight hundred ninety-one thousand, five hundred eighty-seven".