491608142 has 16 divisors (see below), whose sum is σ = 781432272. Its totient is φ = 231154560.

The previous prime is 491608093. The next prime is 491608157. The reversal of 491608142 is 241806194.

It is a happy number.

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, 41417 + ... + 51947.

It is an arithmetic number, because the mean of its divisors is an integer number (48839517).

Almost surely, 2^491608142 is an apocalyptic number.

491608142 is a deficient number, since it is larger than the sum of its proper divisors (289824130).

491608142 is a wasteful number, since it uses less digits than its factorization.

491608142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11923.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 491608142 is about 22172.2380918120. The cubic root of 491608142 is about 789.2350347650.

The spelling of 491608142 in words is "four hundred ninety-one million, six hundred eight thousand, one hundred forty-two".