90122733 has 8 divisors (see below), whose sum is σ = 133515200. Its totient is φ = 60081804.

The previous prime is 90122707. The next prime is 90122761. The reversal of 90122733 is 33722109.

It is not a de Polignac number, because 90122733 - 2¹⁴ = 90106349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3337879 = 90122733 / (9 + 0 + 1 + 2 + 2 + 7 + 3 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90122697 and 90122706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90122233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1668913 + ... + 1668966.

It is an arithmetic number, because the mean of its divisors is an integer number (16689400).

Almost surely, 2^90122733 is an apocalyptic number.

It is an amenable number.

90122733 is a deficient number, since it is larger than the sum of its proper divisors (43392467).

90122733 is a wasteful number, since it uses less digits than its factorization.

90122733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337888 (or 3337882 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 90122733 is about 9493.2993737688. The cubic root of 90122733 is about 448.3440918479.

The spelling of 90122733 in words is "ninety million, one hundred twenty-two thousand, seven hundred thirty-three".