212403141 has 12 divisors (see below), whose sum is σ = 318168032. Its totient is φ = 141601932.

The previous prime is 212403119. The next prime is 212403157. The reversal of 212403141 is 141304212.

It is not a de Polignac number, because 212403141 - 2⁷ = 212403013 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 (212403161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436801 + ... + 437286.

Almost surely, 2^212403141 is an apocalyptic number.

It is an amenable number.

212403141 is a deficient number, since it is larger than the sum of its proper divisors (105764891).

212403141 is an frugal number, since it uses more digits than its factorization.

212403141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874102 (or 874090 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 212403141 is about 14574.0571221606. The cubic root of 212403141 is about 596.6509158408.

Adding to 212403141 its reverse (141304212), we get a palindrome (353707353).

The spelling of 212403141 in words is "two hundred twelve million, four hundred three thousand, one hundred forty-one".