212161710 has 16 divisors (see below), whose sum is σ = 509188176. Its totient is φ = 56576448.

The previous prime is 212161693. The next prime is 212161723. The reversal of 212161710 is 17161212.

It is a happy number.

212161710 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3535999 + ... + 3536058.

It is an arithmetic number, because the mean of its divisors is an integer number (31824261).

Almost surely, 2^212161710 is an apocalyptic number.

212161710 is an abundant number, since it is smaller than the sum of its proper divisors (297026466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212161710 is a wasteful number, since it uses less digits than its factorization.

212161710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7072067.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 212161710 is about 14565.7718642027. The cubic root of 212161710 is about 596.4247662652.

The spelling of 212161710 in words is "two hundred twelve million, one hundred sixty-one thousand, seven hundred ten".