90529130 has 16 divisors (see below), whose sum is σ = 164634120. Its totient is φ = 35837952.

The previous prime is 90529123. The next prime is 90529133. The reversal of 90529130 is 3192509.

It can be written as a sum of positive squares in 4 ways, for example, as 60202081 + 30327049 = 7759^2 + 5507^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90529093 and 90529102.

It is not an unprimeable number, because it can be changed into a prime (90529133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45695 + ... + 47634.

Almost surely, 2^90529130 is an apocalyptic number.

90529130 is a deficient number, since it is larger than the sum of its proper divisors (74104990).

90529130 is a wasteful number, since it uses less digits than its factorization.

90529130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93433.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 90529130 is about 9514.6797108468. The cubic root of 90529130 is about 449.0169982801.

The spelling of 90529130 in words is "ninety million, five hundred twenty-nine thousand, one hundred thirty".