212753985 has 32 divisors (see below), whose sum is σ = 348613632. Its totient is φ = 110765760.

The previous prime is 212753977. The next prime is 212753987. The reversal of 212753985 is 589357212.

It is a happy number.

212753985 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 212753985 - 2³ = 212753977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212753987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113022 + ... + 114888.

It is an arithmetic number, because the mean of its divisors is an integer number (10894176).

Almost surely, 2^212753985 is an apocalyptic number.

It is an amenable number.

212753985 is a deficient number, since it is larger than the sum of its proper divisors (135859647).

212753985 is a wasteful number, since it uses less digits than its factorization.

212753985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053.

The product of its digits is 151200, while the sum is 42.

The square root of 212753985 is about 14586.0887492158. The cubic root of 212753985 is about 596.9792478386.

The spelling of 212753985 in words is "two hundred twelve million, seven hundred fifty-three thousand, nine hundred eighty-five".