212437093 has 8 divisors (see below), whose sum is σ = 239741280. Its totient is φ = 186464880.

The previous prime is 212437073. The next prime is 212437097. The reversal of 212437093 is 390734212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212437093 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212437097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332655 + ... + 333292.

It is an arithmetic number, because the mean of its divisors is an integer number (29967660).

Almost surely, 2^212437093 is an apocalyptic number.

It is an amenable number.

212437093 is a deficient number, since it is larger than the sum of its proper divisors (27304187).

212437093 is a wasteful number, since it uses less digits than its factorization.

212437093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665987.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 212437093 is about 14575.2218851035. The cubic root of 212437093 is about 596.6827050955.

The spelling of 212437093 in words is "two hundred twelve million, four hundred thirty-seven thousand, ninety-three".