494152191 has 16 divisors (see below), whose sum is σ = 788391520. Its totient is φ = 304093440.

The previous prime is 494152187. The next prime is 494152201. The reversal of 494152191 is 191251494.

It is a happy number.

494152191 is a `hidden beast` number, since 4 + 9 + 41 + 521 + 91 = 666.

It is not a de Polignac number, because 494152191 - 2² = 494152187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494152151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703570 + ... + 704271.

It is an arithmetic number, because the mean of its divisors is an integer number (49274470).

Almost surely, 2^494152191 is an apocalyptic number.

494152191 is a deficient number, since it is larger than the sum of its proper divisors (294239329).

494152191 is a wasteful number, since it uses less digits than its factorization.

494152191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407863 (or 1407857 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 494152191 is about 22229.5342056463. The cubic root of 494152191 is about 790.5941111233.

The spelling of 494152191 in words is "four hundred ninety-four million, one hundred fifty-two thousand, one hundred ninety-one".