90141533 has 2 divisors, whose sum is σ = 90141534. Its totient is φ = 90141532.

The previous prime is 90141517. The next prime is 90141547. The reversal of 90141533 is 33514109.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46607929 + 43533604 = 6827^2 + 6598^2 .

It is a cyclic number.

It is not a de Polignac number, because 90141533 - 2⁴ = 90141517 is a prime.

It is a super-3 number, since 3×90141533³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90141553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45070766 + 45070767.

It is an arithmetic number, because the mean of its divisors is an integer number (45070767).

Almost surely, 2^90141533 is an apocalyptic number.

It is an amenable number.

90141533 is a deficient number, since it is larger than the sum of its proper divisors (1).

90141533 is an equidigital number, since it uses as much as digits as its factorization.

90141533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 90141533 is about 9494.2894942170. The cubic root of 90141533 is about 448.3752651994.

The spelling of 90141533 in words is "ninety million, one hundred forty-one thousand, five hundred thirty-three".