90240130 has 8 divisors (see below), whose sum is σ = 162432252. Its totient is φ = 36096048.

The previous prime is 90240113. The next prime is 90240133. The reversal of 90240130 is 3104209.

It can be written as a sum of positive squares in 2 ways, for example, as 87441201 + 2798929 = 9351^2 + 1673^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 90240098 and 90240107.

It is not an unprimeable number, because it can be changed into a prime (90240133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4511997 + ... + 4512016.

Almost surely, 2^90240130 is an apocalyptic number.

90240130 is a deficient number, since it is larger than the sum of its proper divisors (72192122).

90240130 is a wasteful number, since it uses less digits than its factorization.

90240130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9024020.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 90240130 is about 9499.4805121122. The cubic root of 90240130 is about 448.5386835701.

Adding to 90240130 its reverse (3104209), we get a palindrome (93344339).

The spelling of 90240130 in words is "ninety million, two hundred forty thousand, one hundred thirty".