212136054 has 32 divisors (see below), whose sum is σ = 457712640. Its totient is φ = 65157792.

The previous prime is 212136053. The next prime is 212136139. The reversal of 212136054 is 450631212.

212136054 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 not an unprimeable number, because it can be changed into a prime (212136053) 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, 49339 + ... + 53465.

It is an arithmetic number, because the mean of its divisors is an integer number (14303520).

Almost surely, 2^212136054 is an apocalyptic number.

212136054 is an abundant number, since it is smaller than the sum of its proper divisors (245576586).

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

212136054 is a wasteful number, since it uses less digits than its factorization.

212136054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4804.

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

The square root of 212136054 is about 14564.8911427446. The cubic root of 212136054 is about 596.4007240843.

Adding to 212136054 its reverse (450631212), we get a palindrome (662767266).

The spelling of 212136054 in words is "two hundred twelve million, one hundred thirty-six thousand, fifty-four".