212457141 has 32 divisors (see below), whose sum is σ = 353713920. Its totient is φ = 125053632.

The previous prime is 212457137. The next prime is 212457169. The reversal of 212457141 is 141754212.

It is not a de Polignac number, because 212457141 - 2² = 212457137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212457181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5086 + ... + 21231.

It is an arithmetic number, because the mean of its divisors is an integer number (11053560).

Almost surely, 2^212457141 is an apocalyptic number.

It is an amenable number.

212457141 is a deficient number, since it is larger than the sum of its proper divisors (141256779).

212457141 is a wasteful number, since it uses less digits than its factorization.

212457141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26362 (or 26356 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 212457141 is about 14575.9096114102. The cubic root of 212457141 is about 596.7014744457.

The spelling of 212457141 in words is "two hundred twelve million, four hundred fifty-seven thousand, one hundred forty-one".