1491260223 has 16 divisors (see below), whose sum is σ = 2109968640. Its totient is φ = 934828224.

The previous prime is 1491260203. The next prime is 1491260297. The reversal of 1491260223 is 3220621941.

It is not a de Polignac number, because 1491260223 - 2¹⁶ = 1491194687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491260203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179086 + ... + 187227.

It is an arithmetic number, because the mean of its divisors is an integer number (131873040).

Almost surely, 2^1491260223 is an apocalyptic number.

1491260223 is a deficient number, since it is larger than the sum of its proper divisors (618708417).

1491260223 is a wasteful number, since it uses less digits than its factorization.

1491260223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366398.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1491260223 is about 38616.8385940641. The cubic root of 1491260223 is about 1142.4866779071.

The spelling of 1491260223 in words is "one billion, four hundred ninety-one million, two hundred sixty thousand, two hundred twenty-three".