491141125 has 8 divisors (see below), whose sum is σ = 612944280. Its totient is φ = 392912800.

The previous prime is 491141111. The next prime is 491141137. The reversal of 491141125 is 521141194.

It can be written as a sum of positive squares in 4 ways, for example, as 53787556 + 437353569 = 7334^2 + 20913^2 .

It is not a de Polignac number, because 491141125 - 2¹⁹ = 490616837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 491141093 and 491141102.

It is a congruent number.

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, 1964440 + ... + 1964689.

It is an arithmetic number, because the mean of its divisors is an integer number (76618035).

Almost surely, 2^491141125 is an apocalyptic number.

It is an amenable number.

491141125 is a deficient number, since it is larger than the sum of its proper divisors (121803155).

491141125 is an equidigital number, since it uses as much as digits as its factorization.

491141125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929144 (or 3929134 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 491141125 is about 22161.7040184188. The cubic root of 491141125 is about 788.9850369011.

The spelling of 491141125 in words is "four hundred ninety-one million, one hundred forty-one thousand, one hundred twenty-five".