90019130 has 16 divisors (see below), whose sum is σ = 162214920. Its totient is φ = 35967552.

The previous prime is 90019121. The next prime is 90019151. The reversal of 90019130 is 3191009.

It can be written as a sum of positive squares in 4 ways, for example, as 88943761 + 1075369 = 9431^2 + 1037^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90019096 and 90019105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5456 + ... + 14484.

Almost surely, 2^90019130 is an apocalyptic number.

90019130 is a deficient number, since it is larger than the sum of its proper divisors (72195790).

90019130 is a wasteful number, since it uses less digits than its factorization.

90019130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10033.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 90019130 is about 9487.8411664614. The cubic root of 90019130 is about 448.1722239888.

The spelling of 90019130 in words is "ninety million, nineteen thousand, one hundred thirty".