213723141 has 8 divisors (see below), whose sum is σ = 285272064. Its totient is φ = 142328160.

The previous prime is 213723131. The next prime is 213723149. The reversal of 213723141 is 141327312.

It is a happy number.

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

It is not a de Polignac number, because 213723141 - 2⁵ = 213723109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213723149) 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, 35205 + ... + 40826.

It is an arithmetic number, because the mean of its divisors is an integer number (35659008).

Almost surely, 2^213723141 is an apocalyptic number.

It is an amenable number.

213723141 is a deficient number, since it is larger than the sum of its proper divisors (71548923).

213723141 is an equidigital number, since it uses as much as digits as its factorization.

213723141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76971.

The product of its digits is 1008, while the sum is 24.

The square root of 213723141 is about 14619.2729299374. The cubic root of 213723141 is about 597.8843460040.

The spelling of 213723141 in words is "two hundred thirteen million, seven hundred twenty-three thousand, one hundred forty-one".