491167375 has 16 divisors (see below), whose sum is σ = 613660320. Its totient is φ = 392496000.

The previous prime is 491167373. The next prime is 491167459. The reversal of 491167375 is 573761194.

It is not a de Polignac number, because 491167375 - 2¹ = 491167373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491167373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155815 + ... + 158935.

It is an arithmetic number, because the mean of its divisors is an integer number (38353770).

Almost surely, 2^491167375 is an apocalyptic number.

491167375 is a deficient number, since it is larger than the sum of its proper divisors (122492945).

491167375 is a wasteful number, since it uses less digits than its factorization.

491167375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395 (or 4385 counting only the distinct ones).

The product of its digits is 158760, while the sum is 43.

The square root of 491167375 is about 22162.2962483584. The cubic root of 491167375 is about 788.9990929345. Note that the first 3 decimals are identical.

The spelling of 491167375 in words is "four hundred ninety-one million, one hundred sixty-seven thousand, three hundred seventy-five".