90135130 has 8 divisors (see below), whose sum is σ = 162243252. Its totient is φ = 36054048.

The previous prime is 90135119. The next prime is 90135163. The reversal of 90135130 is 3153109.

It can be written as a sum of positive squares in 2 ways, for example, as 88416409 + 1718721 = 9403^2 + 1311^2 .

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

It is a zygodrome in base 4.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4506747 + ... + 4506766.

Almost surely, 2^90135130 is an apocalyptic number.

90135130 is a deficient number, since it is larger than the sum of its proper divisors (72108122).

90135130 is a wasteful number, since it uses less digits than its factorization.

90135130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9013520.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 90135130 is about 9493.9522855342. The cubic root of 90135130 is about 448.3646485069.

Adding to 90135130 its reverse (3153109), we get a palindrome (93288239).

The spelling of 90135130 in words is "ninety million, one hundred thirty-five thousand, one hundred thirty".