215714069 has 2 divisors, whose sum is σ = 215714070. Its totient is φ = 215714068.

The previous prime is 215714047. The next prime is 215714077. The reversal of 215714069 is 960417512.

215714069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212868100 + 2845969 = 14590^2 + 1687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215714069 is a prime.

It is a super-2 number, since 2×215714069² = 93065119129073522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215714029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107857034 + 107857035.

It is an arithmetic number, because the mean of its divisors is an integer number (107857035).

Almost surely, 2^215714069 is an apocalyptic number.

It is an amenable number.

215714069 is a deficient number, since it is larger than the sum of its proper divisors (1).

215714069 is an equidigital number, since it uses as much as digits as its factorization.

215714069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 215714069 is about 14687.2076651758. The cubic root of 215714069 is about 599.7351321663.

The spelling of 215714069 in words is "two hundred fifteen million, seven hundred fourteen thousand, sixty-nine".