212253541 has 4 divisors (see below), whose sum is σ = 223424800. Its totient is φ = 201082284.

The previous prime is 212253529. The next prime is 212253563. The reversal of 212253541 is 145352212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212253541 - 2¹⁵ = 212220773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212253841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5585601 + ... + 5585638.

It is an arithmetic number, because the mean of its divisors is an integer number (55856200).

Almost surely, 2^212253541 is an apocalyptic number.

It is an amenable number.

212253541 is a deficient number, since it is larger than the sum of its proper divisors (11171259).

212253541 is a wasteful number, since it uses less digits than its factorization.

212253541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11171258.

The product of its digits is 2400, while the sum is 25.

The square root of 212253541 is about 14568.9238106320. The cubic root of 212253541 is about 596.5108050112.

The spelling of 212253541 in words is "two hundred twelve million, two hundred fifty-three thousand, five hundred forty-one".