213514123 has 4 divisors (see below), whose sum is σ = 216439048. Its totient is φ = 210589200.

The previous prime is 213514117. The next prime is 213514139. The reversal of 213514123 is 321415312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213514123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213514094 and 213514103.

It is not an unprimeable number, because it can be changed into a prime (213214123) 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, 1462353 + ... + 1462498.

It is an arithmetic number, because the mean of its divisors is an integer number (54109762).

Almost surely, 2^213514123 is an apocalyptic number.

213514123 is a deficient number, since it is larger than the sum of its proper divisors (2924925).

213514123 is an equidigital number, since it uses as much as digits as its factorization.

213514123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924924.

The product of its digits is 720, while the sum is 22.

The square root of 213514123 is about 14612.1224673214. The cubic root of 213514123 is about 597.6893751476.

Adding to 213514123 its reverse (321415312), we get a palindrome (534929435).

The spelling of 213514123 in words is "two hundred thirteen million, five hundred fourteen thousand, one hundred twenty-three".