1287084167 has 8 divisors (see below), whose sum is σ = 1298245632. Its totient is φ = 1275939000.

The previous prime is 1287084121. The next prime is 1287084181. The reversal of 1287084167 is 7614807821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1287084167 - 2⁶ = 1287084103 is a prime.

It is a super-3 number, since 3×1287084167³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287084767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196292 + ... + 202742.

It is an arithmetic number, because the mean of its divisors is an integer number (162280704).

Almost surely, 2^1287084167 is an apocalyptic number.

1287084167 is a deficient number, since it is larger than the sum of its proper divisors (11161465).

1287084167 is a wasteful number, since it uses less digits than its factorization.

1287084167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8149.

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 1287084167 is about 35875.9552764801. The cubic root of 1287084167 is about 1087.7664238597.

The spelling of 1287084167 in words is "one billion, two hundred eighty-seven million, eighty-four thousand, one hundred sixty-seven".