212542610 has 32 divisors (see below), whose sum is σ = 439782912. Its totient is φ = 72446400.

The previous prime is 212542579. The next prime is 212542613. The reversal of 212542610 is 16245212.

It is a happy number.

It is a super-2 number, since 2×212542610² = 90348722131224200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212542613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3335 + ... + 20885.

It is an arithmetic number, because the mean of its divisors is an integer number (13743216).

Almost surely, 2^212542610 is an apocalyptic number.

212542610 is an abundant number, since it is smaller than the sum of its proper divisors (227240302).

212542610 is a wasteful number, since it uses less digits than its factorization.

212542610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17738.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 212542610 is about 14578.8411747985. The cubic root of 212542610 is about 596.7814790383.

Adding to 212542610 its reverse (16245212), we get a palindrome (228787822).

The spelling of 212542610 in words is "two hundred twelve million, five hundred forty-two thousand, six hundred ten".