2130651 has 32 divisors (see below), whose sum is σ = 3409920. Its totient is φ = 1311552.

The previous prime is 2130631. The next prime is 2130671. The reversal of 2130651 is 1560312.

2130651 is a `hidden beast` number, since 2 + 13 + 0 + 651 = 666.

It is an interprime number because it is at equal distance from previous prime (2130631) and next prime (2130671).

It is not a de Polignac number, because 2130651 - 2⁵ = 2130619 is a prime.

2130651 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29151 + ... + 29223.

It is an arithmetic number, because the mean of its divisors is an integer number (106560).

2^2130651 is an apocalyptic number.

2130651 is a deficient number, since it is larger than the sum of its proper divisors (1279269).

2130651 is a wasteful number, since it uses less digits than its factorization.

2130651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2130651 is about 1459.6749638190. The cubic root of 2130651 is about 128.6779418948.

Adding to 2130651 its reverse (1560312), we get a palindrome (3690963).

The spelling of 2130651 in words is "two million, one hundred thirty thousand, six hundred fifty-one".