210007139 has 8 divisors (see below), whose sum is σ = 216448320. Its totient is φ = 203648256.

The previous prime is 210007129. The next prime is 210007157. The reversal of 210007139 is 931700012.

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

It is a cyclic number.

It is not a de Polignac number, because 210007139 - 2¹⁶ = 209941603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210007129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15374 + ... + 25619.

It is an arithmetic number, because the mean of its divisors is an integer number (27056040).

Almost surely, 2^210007139 is an apocalyptic number.

210007139 is a deficient number, since it is larger than the sum of its proper divisors (6441181).

210007139 is a wasteful number, since it uses less digits than its factorization.

210007139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41149.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 210007139 is about 14491.6230629975. The cubic root of 210007139 is about 594.3989307014.

The spelling of 210007139 in words is "two hundred ten million, seven thousand, one hundred thirty-nine".