215229049 has 8 divisors (see below), whose sum is σ = 251975808. Its totient is φ = 179982240.

The previous prime is 215229041. The next prime is 215229067. The reversal of 215229049 is 940922512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 215229049 - 2³ = 215229041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215229041) 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 in 7 ways as a sum of consecutive naturals, for example, 374677 + ... + 375250.

It is an arithmetic number, because the mean of its divisors is an integer number (31496976).

Almost surely, 2^215229049 is an apocalyptic number.

It is an amenable number.

215229049 is a deficient number, since it is larger than the sum of its proper divisors (36746759).

215229049 is an equidigital number, since it uses as much as digits as its factorization.

215229049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749975.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 215229049 is about 14670.6867255763. The cubic root of 215229049 is about 599.2853055058.

The spelling of 215229049 in words is "two hundred fifteen million, two hundred twenty-nine thousand, forty-nine".