210048861 has 12 divisors (see below), whose sum is σ = 307840736. Its totient is φ = 127302120.

The previous prime is 210048859. The next prime is 210048869. The reversal of 210048861 is 168840012.

210048861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 210048861 - 2¹ = 210048859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210048869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288961 + ... + 289686.

Almost surely, 2^210048861 is an apocalyptic number.

It is an amenable number.

210048861 is a deficient number, since it is larger than the sum of its proper divisors (97791875).

210048861 is a wasteful number, since it uses less digits than its factorization.

210048861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578672 (or 578661 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 210048861 is about 14493.0625128025. The cubic root of 210048861 is about 594.4382910618.

Adding to 210048861 its reverse (168840012), we get a palindrome (378888873).

The spelling of 210048861 in words is "two hundred ten million, forty-eight thousand, eight hundred sixty-one".