213415923 has 48 divisors (see below), whose sum is σ = 356737920. Its totient is φ = 112783104.

The previous prime is 213415883. The next prime is 213415927. The reversal of 213415923 is 329514312.

It is not a de Polignac number, because 213415923 - 2¹⁴ = 213399539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213415927) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119211 + ... + 120987.

It is an arithmetic number, because the mean of its divisors is an integer number (7432040).

Almost surely, 2^213415923 is an apocalyptic number.

213415923 is a deficient number, since it is larger than the sum of its proper divisors (143321997).

213415923 is a wasteful number, since it uses less digits than its factorization.

213415923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856 (or 1849 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 213415923 is about 14608.7618571869. The cubic root of 213415923 is about 597.5977307852.

The spelling of 213415923 in words is "two hundred thirteen million, four hundred fifteen thousand, nine hundred twenty-three".