85969141 has 2 divisors, whose sum is σ = 85969142. Its totient is φ = 85969140.

The previous prime is 85969123. The next prime is 85969183. The reversal of 85969141 is 14196958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47900241 + 38068900 = 6921^2 + 6170^2 .

It is a cyclic number.

It is not a de Polignac number, because 85969141 - 2⁵ = 85969109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85969111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42984570 + 42984571.

It is an arithmetic number, because the mean of its divisors is an integer number (42984571).

Almost surely, 2^85969141 is an apocalyptic number.

It is an amenable number.

85969141 is a deficient number, since it is larger than the sum of its proper divisors (1).

85969141 is an equidigital number, since it uses as much as digits as its factorization.

85969141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 43.

The square root of 85969141 is about 9271.9545404408. The cubic root of 85969141 is about 441.3476946650.

The spelling of 85969141 in words is "eighty-five million, nine hundred sixty-nine thousand, one hundred forty-one".