2130491 has 8 divisors (see below), whose sum is σ = 2461104. Its totient is φ = 1822720.

The previous prime is 2130473. The next prime is 2130493. The reversal of 2130491 is 1940312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130493) 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, 5510 + ... + 5883.

It is an arithmetic number, because the mean of its divisors is an integer number (307638).

2^2130491 is an apocalyptic number.

2130491 is a deficient number, since it is larger than the sum of its proper divisors (330613).

2130491 is a wasteful number, since it uses less digits than its factorization.

2130491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11421.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2130491 is about 1459.6201560680. The cubic root of 2130491 is about 128.6747208157.

The spelling of 2130491 in words is "two million, one hundred thirty thousand, four hundred ninety-one".