212878053 has 6 divisors (see below), whose sum is σ = 307490534. Its totient is φ = 141918696.

The previous prime is 212878049. The next prime is 212878069. The reversal of 212878053 is 350878212.

It can be written as a sum of positive squares in only one way, i.e., 198725409 + 14152644 = 14097^2 + 3762^2 .

It is not a de Polignac number, because 212878053 - 2² = 212878049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212877999 and 212878017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212878153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11826550 + ... + 11826567.

Almost surely, 2^212878053 is an apocalyptic number.

It is an amenable number.

212878053 is a deficient number, since it is larger than the sum of its proper divisors (94612481).

212878053 is a wasteful number, since it uses less digits than its factorization.

212878053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23653123 (or 23653120 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 212878053 is about 14590.3410858006. The cubic root of 212878053 is about 597.0952685855.

The spelling of 212878053 in words is "two hundred twelve million, eight hundred seventy-eight thousand, fifty-three".