2130999 has 16 divisors (see below), whose sum is σ = 3095904. Its totient is φ = 1296000.

The previous prime is 2130979. The next prime is 2131013. The reversal of 2130999 is 9990312.

It is not a de Polignac number, because 2130999 - 2¹² = 2126903 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3669 + ... + 4209.

It is an arithmetic number, because the mean of its divisors is an integer number (193494).

2^2130999 is an apocalyptic number.

2130999 is a deficient number, since it is larger than the sum of its proper divisors (964905).

2130999 is a wasteful number, since it uses less digits than its factorization.

2130999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 2130999 is about 1459.7941635724. The cubic root of 2130999 is about 128.6849471850.

The spelling of 2130999 in words is "two million, one hundred thirty thousand, nine hundred ninety-nine".