213154422 has 16 divisors (see below), whose sum is σ = 459102000. Its totient is φ = 65585952.

The previous prime is 213154421. The next prime is 213154427. The reversal of 213154422 is 224451312.

It is a junction number, because it is equal to n+sod(n) for n = 213154392 and 213154401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213154421) 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, 1366297 + ... + 1366452.

It is an arithmetic number, because the mean of its divisors is an integer number (28693875).

Almost surely, 2^213154422 is an apocalyptic number.

213154422 is an abundant number, since it is smaller than the sum of its proper divisors (245947578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213154422 is a wasteful number, since it uses less digits than its factorization.

213154422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732767.

The product of its digits is 1920, while the sum is 24.

The square root of 213154422 is about 14599.8089713530. The cubic root of 213154422 is about 597.3535498872.

The spelling of 213154422 in words is "two hundred thirteen million, one hundred fifty-four thousand, four hundred twenty-two".