9090501 has 16 divisors (see below), whose sum is σ = 14175744. Its totient is φ = 5073264.

The previous prime is 9090463. The next prime is 9090503. The reversal of 9090501 is 1050909.

It is a happy number.

9090501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9090501 - 2⁶ = 9090437 is a prime.

It is an alternating number because its digits alternate between odd and even.

9090501 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4131 + ... + 5936.

It is an arithmetic number, because the mean of its divisors is an integer number (885984).

Almost surely, 2^9090501 is an apocalyptic number.

It is an amenable number.

9090501 is a deficient number, since it is larger than the sum of its proper divisors (5085243).

9090501 is a wasteful number, since it uses less digits than its factorization.

9090501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10120.

The product of its (nonzero) digits is 405, while the sum is 24.

The square root of 9090501 is about 3015.0457707969. The cubic root of 9090501 is about 208.7032792521.

It can be divided in two parts, 9090 and 501, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 9090501 in words is "nine million, ninety thousand, five hundred one".