90435130 has 8 divisors (see below), whose sum is σ = 162783252. Its totient is φ = 36174048.

The previous prime is 90435127. The next prime is 90435131. The reversal of 90435130 is 3153409.

It can be written as a sum of positive squares in 2 ways, for example, as 85359121 + 5076009 = 9239^2 + 2253^2 .

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 = 90435095 and 90435104.

It is not an unprimeable number, because it can be changed into a prime (90435131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4521747 + ... + 4521766.

Almost surely, 2^90435130 is an apocalyptic number.

90435130 is a deficient number, since it is larger than the sum of its proper divisors (72348122).

90435130 is a wasteful number, since it uses less digits than its factorization.

90435130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9043520.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 90435130 is about 9509.7386925194. The cubic root of 90435130 is about 448.8615337172.

Adding to 90435130 its reverse (3153409), we get a palindrome (93588539).

The spelling of 90435130 in words is "ninety million, four hundred thirty-five thousand, one hundred thirty".