491550122 has 16 divisors (see below), whose sum is σ = 856941120. Its totient is φ = 207093408.

The previous prime is 491550047. The next prime is 491550127. The reversal of 491550122 is 221055194.

It is not an unprimeable number, because it can be changed into a prime (491550127) 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, 296723 + ... + 298374.

It is an arithmetic number, because the mean of its divisors is an integer number (53558820).

Almost surely, 2^491550122 is an apocalyptic number.

491550122 is a deficient number, since it is larger than the sum of its proper divisors (365390998).

491550122 is a wasteful number, since it uses less digits than its factorization.

491550122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595165.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 491550122 is about 22170.9296602556. The cubic root of 491550122 is about 789.2039848193.

The spelling of 491550122 in words is "four hundred ninety-one million, five hundred fifty thousand, one hundred twenty-two".