90107530 has 16 divisors (see below), whose sum is σ = 162306144. Its totient is φ = 36018000.

The previous prime is 90107527. The next prime is 90107533. The reversal of 90107530 is 3570109.

It is an interprime number because it is at equal distance from previous prime (90107527) and next prime (90107533).

It is a super-3 number, since 3×90107530³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90107495 and 90107504.

It is not an unprimeable number, because it can be changed into a prime (90107533) 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, 20509 + ... + 24511.

It is an arithmetic number, because the mean of its divisors is an integer number (10144134).

Almost surely, 2^90107530 is an apocalyptic number.

90107530 is a deficient number, since it is larger than the sum of its proper divisors (72198614).

90107530 is a wasteful number, since it uses less digits than its factorization.

90107530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6261.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 90107530 is about 9492.4986173294. The cubic root of 90107530 is about 448.3188797166.

Adding to 90107530 its reverse (3570109), we get a palindrome (93677639).

The spelling of 90107530 in words is "ninety million, one hundred seven thousand, five hundred thirty".