90163526 has 4 divisors (see below), whose sum is σ = 135245292. Its totient is φ = 45081762.

The previous prime is 90163511. The next prime is 90163543. The reversal of 90163526 is 62536109.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×90163526² = 16258922841505352, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90163492 and 90163501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22540880 + ... + 22540883.

It is an arithmetic number, because the mean of its divisors is an integer number (33811323).

Almost surely, 2^90163526 is an apocalyptic number.

90163526 is a deficient number, since it is larger than the sum of its proper divisors (45081766).

90163526 is a wasteful number, since it uses less digits than its factorization.

90163526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45081765.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 90163526 is about 9495.4476461092. The cubic root of 90163526 is about 448.4117275455.

The spelling of 90163526 in words is "ninety million, one hundred sixty-three thousand, five hundred twenty-six".