211453042 has 4 divisors (see below), whose sum is σ = 317179566. Its totient is φ = 105726520.

The previous prime is 211453037. The next prime is 211453049. The reversal of 211453042 is 240354112.

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

It can be written as a sum of positive squares in only one way, i.e., 211091841 + 361201 = 14529^2 + 601^2 .

It is not an unprimeable number, because it can be changed into a prime (211453049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52863259 + ... + 52863262.

Almost surely, 2^211453042 is an apocalyptic number.

211453042 is a deficient number, since it is larger than the sum of its proper divisors (105726524).

211453042 is a wasteful number, since it uses less digits than its factorization.

211453042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105726523.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 211453042 is about 14541.4250333315. The cubic root of 211453042 is about 595.7599610675.

The spelling of 211453042 in words is "two hundred eleven million, four hundred fifty-three thousand, forty-two".