215041129 has 2 divisors, whose sum is σ = 215041130. Its totient is φ = 215041128.

The previous prime is 215041117. The next prime is 215041133. The reversal of 215041129 is 921140512.

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., 168091225 + 46949904 = 12965^2 + 6852^2 .

It is a cyclic number.

It is not a de Polignac number, because 215041129 - 2¹⁷ = 214910057 is a prime.

It is not a weakly prime, because it can be changed into another prime (215041139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107520564 + 107520565.

It is an arithmetic number, because the mean of its divisors is an integer number (107520565).

Almost surely, 2^215041129 is an apocalyptic number.

It is an amenable number.

215041129 is a deficient number, since it is larger than the sum of its proper divisors (1).

215041129 is an equidigital number, since it uses as much as digits as its factorization.

215041129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 215041129 is about 14664.2807188079. The cubic root of 215041129 is about 599.1108394549.

The spelling of 215041129 in words is "two hundred fifteen million, forty-one thousand, one hundred twenty-nine".