215030069 has 2 divisors, whose sum is σ = 215030070. Its totient is φ = 215030068.

The previous prime is 215030033. The next prime is 215030107. The reversal of 215030069 is 960030512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209149444 + 5880625 = 14462^2 + 2425^2 .

It is a cyclic number.

It is not a de Polignac number, because 215030069 - 2⁸ = 215029813 is a prime.

It is a super-2 number, since 2×215030069² = 92475861148289522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215036069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107515034 + 107515035.

It is an arithmetic number, because the mean of its divisors is an integer number (107515035).

Almost surely, 2^215030069 is an apocalyptic number.

It is an amenable number.

215030069 is a deficient number, since it is larger than the sum of its proper divisors (1).

215030069 is an equidigital number, since it uses as much as digits as its factorization.

215030069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 215030069 is about 14663.9036071573. The cubic root of 215030069 is about 599.1005681183.

The spelling of 215030069 in words is "two hundred fifteen million, thirty thousand, sixty-nine".