1287481414 has 4 divisors (see below), whose sum is σ = 1931222124. Its totient is φ = 643740706.

The previous prime is 1287481409. The next prime is 1287481427. The reversal of 1287481414 is 4141847821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4141847821 = 37 ⋅111941833.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321870352 + ... + 321870355.

It is an arithmetic number, because the mean of its divisors is an integer number (482805531).

Almost surely, 2^1287481414 is an apocalyptic number.

1287481414 is a deficient number, since it is larger than the sum of its proper divisors (643740710).

1287481414 is an equidigital number, since it uses as much as digits as its factorization.

1287481414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643740709.

The product of its digits is 57344, while the sum is 40.

The square root of 1287481414 is about 35881.4912454876. The cubic root of 1287481414 is about 1087.8783221363.

The spelling of 1287481414 in words is "one billion, two hundred eighty-seven million, four hundred eighty-one thousand, four hundred fourteen".