212766452 has 6 divisors (see below), whose sum is σ = 372341298. Its totient is φ = 106383224.

The previous prime is 212766413. The next prime is 212766461. The reversal of 212766452 is 254667212.

It can be written as a sum of positive squares in only one way, i.e., 190826596 + 21939856 = 13814^2 + 4684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26595803 + ... + 26595810.

It is an arithmetic number, because the mean of its divisors is an integer number (62056883).

Almost surely, 2^212766452 is an apocalyptic number.

It is an amenable number.

212766452 is a deficient number, since it is larger than the sum of its proper divisors (159574846).

212766452 is a wasteful number, since it uses less digits than its factorization.

212766452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53191617 (or 53191615 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 212766452 is about 14586.5161022089. The cubic root of 212766452 is about 596.9909082468.

The spelling of 212766452 in words is "two hundred twelve million, seven hundred sixty-six thousand, four hundred fifty-two".