210481138 has 8 divisors (see below), whose sum is σ = 360824832. Its totient is φ = 90206196.

The previous prime is 210481129. The next prime is 210481147. The reversal of 210481138 is 831184012.

It is an interprime number because it is at equal distance from previous prime (210481129) and next prime (210481147).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7517170 + ... + 7517197.

It is an arithmetic number, because the mean of its divisors is an integer number (45103104).

Almost surely, 2^210481138 is an apocalyptic number.

210481138 is a deficient number, since it is larger than the sum of its proper divisors (150343694).

210481138 is a wasteful number, since it uses less digits than its factorization.

210481138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15034376.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 210481138 is about 14507.9680865378. The cubic root of 210481138 is about 594.8457929588.

The spelling of 210481138 in words is "two hundred ten million, four hundred eighty-one thousand, one hundred thirty-eight".