212370453 has 6 divisors (see below), whose sum is σ = 306757334. Its totient is φ = 141580296.

The previous prime is 212370449. The next prime is 212370461. The reversal of 212370453 is 354073212.

It can be written as a sum of positive squares in only one way, i.e., 211789809 + 580644 = 14553^2 + 762^2 .

It is not a de Polignac number, because 212370453 - 2² = 212370449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212370493) 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, 11798350 + ... + 11798367.

Almost surely, 2^212370453 is an apocalyptic number.

It is an amenable number.

212370453 is a deficient number, since it is larger than the sum of its proper divisors (94386881).

212370453 is a wasteful number, since it uses less digits than its factorization.

212370453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23596723 (or 23596720 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 212370453 is about 14572.9356342502. The cubic root of 212370453 is about 596.6203068683.

The spelling of 212370453 in words is "two hundred twelve million, three hundred seventy thousand, four hundred fifty-three".