215055914 has 8 divisors (see below), whose sum is σ = 331302468. Its totient is φ = 104621760.

The previous prime is 215055913. The next prime is 215055923. The reversal of 215055914 is 419550512.

It can be written as a sum of positive squares in 2 ways, for example, as 214124689 + 931225 = 14633^2 + 965^2 .

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

It is a super-2 number, since 2×215055914² = 92498092292750792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (215055913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1453007 + ... + 1453154.

Almost surely, 2^215055914 is an apocalyptic number.

215055914 is a deficient number, since it is larger than the sum of its proper divisors (116246554).

215055914 is a wasteful number, since it uses less digits than its factorization.

215055914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906200.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 215055914 is about 14664.7848262428. The cubic root of 215055914 is about 599.1245696203.

The spelling of 215055914 in words is "two hundred fifteen million, fifty-five thousand, nine hundred fourteen".