2091412129 has 2 divisors, whose sum is σ = 2091412130. Its totient is φ = 2091412128.

The previous prime is 2091412121. The next prime is 2091412133. The reversal of 2091412129 is 9212141902.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2084379025 + 7033104 = 45655^2 + 2652^2 .

It is a cyclic number.

It is not a de Polignac number, because 2091412129 - 2³ = 2091412121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2091412129.

It is not a weakly prime, because it can be changed into another prime (2091412121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045706064 + 1045706065.

It is an arithmetic number, because the mean of its divisors is an integer number (1045706065).

Almost surely, 2^2091412129 is an apocalyptic number.

It is an amenable number.

2091412129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2091412129 is an equidigital number, since it uses as much as digits as its factorization.

2091412129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2091412129 is about 45731.9596015740. The cubic root of 2091412129 is about 1278.8311532345.

The spelling of 2091412129 in words is "two billion, ninety-one million, four hundred twelve thousand, one hundred twenty-nine".