2130929 has 2 divisors, whose sum is σ = 2130930. Its totient is φ = 2130928.

The previous prime is 2130917. The next prime is 2130937. The reversal of 2130929 is 9290312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2096704 + 34225 = 1448^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130929 - 2⁸ = 2130673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2130898 and 2130907.

It is not a weakly prime, because it can be changed into another prime (2130959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065464 + 1065465.

It is an arithmetic number, because the mean of its divisors is an integer number (1065465).

2^2130929 is an apocalyptic number.

It is an amenable number.

2130929 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130929 is an equidigital number, since it uses as much as digits as its factorization.

2130929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2130929 is about 1459.7701873925. The cubic root of 2130929 is about 128.6835381362.

The spelling of 2130929 in words is "two million, one hundred thirty thousand, nine hundred twenty-nine".