215270601 has 16 divisors (see below), whose sum is σ = 353265024. Its totient is φ = 113549184.

The previous prime is 215270569. The next prime is 215270611. The reversal of 215270601 is 106072512.

It is not a de Polignac number, because 215270601 - 2⁵ = 215270569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215270611) 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 15 ways as a sum of consecutive naturals, for example, 393996 + ... + 394541.

It is an arithmetic number, because the mean of its divisors is an integer number (22079064).

Almost surely, 2^215270601 is an apocalyptic number.

215270601 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

215270601 is a deficient number, since it is larger than the sum of its proper divisors (137994423).

215270601 is a wasteful number, since it uses less digits than its factorization.

215270601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788560.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 215270601 is about 14672.1028145253. The cubic root of 215270601 is about 599.3238689197.

The spelling of 215270601 in words is "two hundred fifteen million, two hundred seventy thousand, six hundred one".