215281034 has 4 divisors (see below), whose sum is σ = 322921554. Its totient is φ = 107640516.

The previous prime is 215280997. The next prime is 215281043. The reversal of 215281034 is 430182512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 150430225 + 64850809 = 12265^2 + 8053^2 .

It is a junction number, because it is equal to n+sod(n) for n = 215280994 and 215281012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53820257 + ... + 53820260.

Almost surely, 2^215281034 is an apocalyptic number.

215281034 is a deficient number, since it is larger than the sum of its proper divisors (107640520).

215281034 is a wasteful number, since it uses less digits than its factorization.

215281034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107640519.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 215281034 is about 14672.4583488930. The cubic root of 215281034 is about 599.3335507572. Note that the first 3 decimals are identical.

The spelling of 215281034 in words is "two hundred fifteen million, two hundred eighty-one thousand, thirty-four".