909145606 has 4 divisors (see below), whose sum is σ = 1363718412. Its totient is φ = 454572802.

The previous prime is 909145561. The next prime is 909145613. The reversal of 909145606 is 606541909.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227286400 + ... + 227286403.

It is an arithmetic number, because the mean of its divisors is an integer number (340929603).

Almost surely, 2^909145606 is an apocalyptic number.

909145606 is a deficient number, since it is larger than the sum of its proper divisors (454572806).

909145606 is a wasteful number, since it uses less digits than its factorization.

909145606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454572805.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 909145606 is about 30152.0414897565. The cubic root of 909145606 is about 968.7487341447.

The spelling of 909145606 in words is "nine hundred nine million, one hundred forty-five thousand, six hundred six".