890188141 has 2 divisors, whose sum is σ = 890188142. Its totient is φ = 890188140.

The previous prime is 890188139. The next prime is 890188163. The reversal of 890188141 is 141881098.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 622702116 + 267486025 = 24954^2 + 16355^2 .

It is a cyclic number.

It is not a de Polignac number, because 890188141 - 2¹ = 890188139 is a prime.

Together with 890188139, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 890188094 and 890188103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (890588141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445094070 + 445094071.

It is an arithmetic number, because the mean of its divisors is an integer number (445094071).

Almost surely, 2^890188141 is an apocalyptic number.

It is an amenable number.

890188141 is a deficient number, since it is larger than the sum of its proper divisors (1).

890188141 is an equidigital number, since it uses as much as digits as its factorization.

890188141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 40.

The square root of 890188141 is about 29836.0208640495. The cubic root of 890188141 is about 961.9679469296.

The spelling of 890188141 in words is "eight hundred ninety million, one hundred eighty-eight thousand, one hundred forty-one".