212534149 has 4 divisors (see below), whose sum is σ = 212574060. Its totient is φ = 212494240.

The previous prime is 212534137. The next prime is 212534159. The reversal of 212534149 is 941435212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61121124 + 151413025 = 7818^2 + 12305^2 .

It is a cyclic number.

It is not a de Polignac number, because 212534149 - 2⁹ = 212533637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212534149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212534159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10462 + ... + 23119.

It is an arithmetic number, because the mean of its divisors is an integer number (53143515).

Almost surely, 2^212534149 is an apocalyptic number.

It is an amenable number.

212534149 is a deficient number, since it is larger than the sum of its proper divisors (39911).

212534149 is an equidigital number, since it uses as much as digits as its factorization.

212534149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39910.

The product of its digits is 8640, while the sum is 31.

The square root of 212534149 is about 14578.5509910965. The cubic root of 212534149 is about 596.7735599437.

It can be divided in two parts, 212 and 534149, that added together give a square (534361 = 731²).

The spelling of 212534149 in words is "two hundred twelve million, five hundred thirty-four thousand, one hundred forty-nine".