90141061 has 2 divisors, whose sum is σ = 90141062. Its totient is φ = 90141060.

The previous prime is 90141049. The next prime is 90141091. The reversal of 90141061 is 16014109.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62252100 + 27888961 = 7890^2 + 5281^2 .

It is a cyclic number.

It is not a de Polignac number, because 90141061 - 2¹³ = 90132869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90141091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45070530 + 45070531.

It is an arithmetic number, because the mean of its divisors is an integer number (45070531).

Almost surely, 2^90141061 is an apocalyptic number.

It is an amenable number.

90141061 is a deficient number, since it is larger than the sum of its proper divisors (1).

90141061 is an equidigital number, since it uses as much as digits as its factorization.

90141061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 90141061 is about 9494.2646371375. The cubic root of 90141061 is about 448.3744826023.

The spelling of 90141061 in words is "ninety million, one hundred forty-one thousand, sixty-one".