215494022 has 4 divisors (see below), whose sum is σ = 323241036. Its totient is φ = 107747010.

The previous prime is 215494021. The next prime is 215494033. The reversal of 215494022 is 220494512.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215494021) 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 as a sum of consecutive naturals, namely, 53873504 + ... + 53873507.

It is an arithmetic number, because the mean of its divisors is an integer number (80810259).

Almost surely, 2^215494022 is an apocalyptic number.

215494022 is a deficient number, since it is larger than the sum of its proper divisors (107747014).

215494022 is a wasteful number, since it uses less digits than its factorization.

215494022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107747013.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 215494022 is about 14679.7146430031. The cubic root of 215494022 is about 599.5311355575.

The spelling of 215494022 in words is "two hundred fifteen million, four hundred ninety-four thousand, twenty-two".