1320650187 has 8 divisors (see below), whose sum is σ = 1768235520. Its totient is φ = 876749160.

The previous prime is 1320650173. The next prime is 1320650203. The reversal of 1320650187 is 7810560231.

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

It is not a de Polignac number, because 1320650187 - 2¹⁰ = 1320649163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320650137) 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, 920239 + ... + 921672.

It is an arithmetic number, because the mean of its divisors is an integer number (221029440).

Almost surely, 2^1320650187 is an apocalyptic number.

1320650187 is a deficient number, since it is larger than the sum of its proper divisors (447585333).

1320650187 is a wasteful number, since it uses less digits than its factorization.

1320650187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842153.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1320650187 is about 36340.7510516775. The cubic root of 1320650187 is about 1097.1413895045.

The spelling of 1320650187 in words is "one billion, three hundred twenty million, six hundred fifty thousand, one hundred eighty-seven".