212140536 has 32 divisors (see below), whose sum is σ = 544687440. Its totient is φ = 68802048.

The previous prime is 212140531. The next prime is 212140541. The reversal of 212140536 is 635041212.

It is an interprime number because it is at equal distance from previous prime (212140531) and next prime (212140541).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212140531) 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, 118561 + ... + 120336.

Almost surely, 2^212140536 is an apocalyptic number.

It is an amenable number.

212140536 is an abundant number, since it is smaller than the sum of its proper divisors (332546904).

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

212140536 is a wasteful number, since it uses less digits than its factorization.

212140536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238943 (or 238939 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 212140536 is about 14565.0450050798. The cubic root of 212140536 is about 596.4049242963.

Adding to 212140536 its reverse (635041212), we get a palindrome (847181748).

The spelling of 212140536 in words is "two hundred twelve million, one hundred forty thousand, five hundred thirty-six".