215030969 has 16 divisors (see below), whose sum is σ = 230169600. Its totient is φ = 200526144.

The previous prime is 215030899. The next prime is 215030993. The reversal of 215030969 is 969030512.

215030969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 215030969 - 2⁸ = 215030713 is a prime.

It is a super-2 number, since 2×215030969² = 92476635258157922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215030069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106679 + ... + 108675.

It is an arithmetic number, because the mean of its divisors is an integer number (14385600).

Almost surely, 2^215030969 is an apocalyptic number.

215030969 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

215030969 is a deficient number, since it is larger than the sum of its proper divisors (15138631).

215030969 is a wasteful number, since it uses less digits than its factorization.

215030969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 215030969 is about 14663.9342947246. The cubic root of 215030969 is about 599.1014039545.

The spelling of 215030969 in words is "two hundred fifteen million, thirty thousand, nine hundred sixty-nine".