494741561 has 8 divisors (see below), whose sum is σ = 502536384. Its totient is φ = 486969840.

The previous prime is 494741549. The next prime is 494741563. The reversal of 494741561 is 165147494.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494741561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494741563) 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, 40235 + ... + 51071.

It is an arithmetic number, because the mean of its divisors is an integer number (62817048).

Almost surely, 2^494741561 is an apocalyptic number.

It is an amenable number.

494741561 is a deficient number, since it is larger than the sum of its proper divisors (7794823).

494741561 is a wasteful number, since it uses less digits than its factorization.

494741561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11551.

The product of its digits is 120960, while the sum is 41.

The square root of 494741561 is about 22242.7867183948. The cubic root of 494741561 is about 790.9082972768.

The spelling of 494741561 in words is "four hundred ninety-four million, seven hundred forty-one thousand, five hundred sixty-one".