1485968191 has 4 divisors (see below), whose sum is σ = 1486781584. Its totient is φ = 1485154800.

The previous prime is 1485968177. The next prime is 1485968201. The reversal of 1485968191 is 1918695841.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1485968191 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 (1485968161) 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, 403950 + ... + 407611.

It is an arithmetic number, because the mean of its divisors is an integer number (371695396).

Almost surely, 2^1485968191 is an apocalyptic number.

1485968191 is a deficient number, since it is larger than the sum of its proper divisors (813393).

1485968191 is an equidigital number, since it uses as much as digits as its factorization.

1485968191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813392.

The product of its digits is 622080, while the sum is 52.

The square root of 1485968191 is about 38548.2579502628. The cubic root of 1485968191 is about 1141.1336294366.

The spelling of 1485968191 in words is "one billion, four hundred eighty-five million, nine hundred sixty-eight thousand, one hundred ninety-one".