1287134601 has 8 divisors (see below), whose sum is σ = 1771540224. Its totient is φ = 830409360.

The previous prime is 1287134581. The next prime is 1287134633. The reversal of 1287134601 is 1064317821.

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

It is not a de Polignac number, because 1287134601 - 2⁷ = 1287134473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1287134201) 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, 6919986 + ... + 6920171.

It is an arithmetic number, because the mean of its divisors is an integer number (221442528).

Almost surely, 2^1287134601 is an apocalyptic number.

It is an amenable number.

1287134601 is a deficient number, since it is larger than the sum of its proper divisors (484405623).

1287134601 is a wasteful number, since it uses less digits than its factorization.

1287134601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13840191.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1287134601 is about 35876.6581637699. The cubic root of 1287134601 is about 1087.7806316058.

The spelling of 1287134601 in words is "one billion, two hundred eighty-seven million, one hundred thirty-four thousand, six hundred one".