210088994 has 4 divisors (see below), whose sum is σ = 315133494. Its totient is φ = 105044496.

The previous prime is 210088993. The next prime is 210089017. The reversal of 210088994 is 499880012.

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., 155875225 + 54213769 = 12485^2 + 7363^2 .

It is not an unprimeable number, because it can be changed into a prime (210088993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52522247 + ... + 52522250.

Almost surely, 2^210088994 is an apocalyptic number.

210088994 is a deficient number, since it is larger than the sum of its proper divisors (105044500).

210088994 is a wasteful number, since it uses less digits than its factorization.

210088994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105044499.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 210088994 is about 14494.4470056639. The cubic root of 210088994 is about 594.4761474485.

The spelling of 210088994 in words is "two hundred ten million, eighty-eight thousand, nine hundred ninety-four".