2130947 has 8 divisors (see below), whose sum is σ = 2622816. Its totient is φ = 1685952.

The previous prime is 2130937. The next prime is 2130959. The reversal of 2130947 is 7490312.

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 2130947 - 2¹² = 2126851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2130917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11618 + ... + 11799.

It is an arithmetic number, because the mean of its divisors is an integer number (327852).

2^2130947 is an apocalyptic number.

2130947 is a deficient number, since it is larger than the sum of its proper divisors (491869).

2130947 is a wasteful number, since it uses less digits than its factorization.

2130947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23437.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2130947 is about 1459.7763527335. The cubic root of 2130947 is about 128.6839004660.

The spelling of 2130947 in words is "two million, one hundred thirty thousand, nine hundred forty-seven".