141445891 has 2 divisors, whose sum is σ = 141445892. Its totient is φ = 141445890.

The previous prime is 141445879. The next prime is 141445897. The reversal of 141445891 is 198544141.

It is a strong prime.

It is an emirp because it is prime and its reverse (198544141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 141445891 - 2¹⁷ = 141314819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 141445891.

It is not a weakly prime, because it can be changed into another prime (141445897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70722945 + 70722946.

It is an arithmetic number, because the mean of its divisors is an integer number (70722946).

Almost surely, 2^141445891 is an apocalyptic number.

141445891 is a deficient number, since it is larger than the sum of its proper divisors (1).

141445891 is an equidigital number, since it uses as much as digits as its factorization.

141445891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 37.

The square root of 141445891 is about 11893.1026649903. The cubic root of 141445891 is about 521.0308581627.

The spelling of 141445891 in words is "one hundred forty-one million, four hundred forty-five thousand, eight hundred ninety-one".