212451364 has 6 divisors (see below), whose sum is σ = 371789894. Its totient is φ = 106225680.

The previous prime is 212451359. The next prime is 212451377. The reversal of 212451364 is 463154212.

It can be written as a sum of positive squares in only one way, i.e., 212284900 + 166464 = 14570^2 + 408^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26556417 + ... + 26556424.

Almost surely, 2^212451364 is an apocalyptic number.

It is an amenable number.

212451364 is a deficient number, since it is larger than the sum of its proper divisors (159338530).

212451364 is a wasteful number, since it uses less digits than its factorization.

212451364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53112845 (or 53112843 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 212451364 is about 14575.7114406124. The cubic root of 212451364 is about 596.6960660205.

The spelling of 212451364 in words is "two hundred twelve million, four hundred fifty-one thousand, three hundred sixty-four".