491514227 has 4 divisors (see below), whose sum is σ = 495266376. Its totient is φ = 487762080.

The previous prime is 491514223. The next prime is 491514263. The reversal of 491514227 is 722415194.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722415194 = 2 ⋅361207597.

It is a cyclic number.

It is not a de Polignac number, because 491514227 - 2² = 491514223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491514223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1875878 + ... + 1876139.

It is an arithmetic number, because the mean of its divisors is an integer number (123816594).

Almost surely, 2^491514227 is an apocalyptic number.

491514227 is a deficient number, since it is larger than the sum of its proper divisors (3752149).

491514227 is a wasteful number, since it uses less digits than its factorization.

491514227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752148.

The product of its digits is 20160, while the sum is 35.

The square root of 491514227 is about 22170.1201395031. The cubic root of 491514227 is about 789.1847740509.

The spelling of 491514227 in words is "four hundred ninety-one million, five hundred fourteen thousand, two hundred twenty-seven".