1411991287 has 16 divisors (see below), whose sum is σ = 1714582080. Its totient is φ = 1139057664.

The previous prime is 1411991263. The next prime is 1411991291. The reversal of 1411991287 is 7821991141.

It is not a de Polignac number, because 1411991287 - 2²⁷ = 1277773559 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 (1411991587) 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, 13863 + ... + 54919.

It is an arithmetic number, because the mean of its divisors is an integer number (107161380).

Almost surely, 2^1411991287 is an apocalyptic number.

1411991287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1411991287 is a deficient number, since it is larger than the sum of its proper divisors (302590793).

1411991287 is an frugal number, since it uses more digits than its factorization.

1411991287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41115 (or 41081 counting only the distinct ones).

The product of its digits is 36288, while the sum is 43.

The square root of 1411991287 is about 37576.4725193837. The cubic root of 1411991287 is about 1121.8737997023.

The spelling of 1411991287 in words is "one billion, four hundred eleven million, nine hundred ninety-one thousand, two hundred eighty-seven".