213254434 has 12 divisors (see below), whose sum is σ = 324740934. Its totient is φ = 105031344.

The previous prime is 213254399. The next prime is 213254449. The reversal of 213254434 is 434452312.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 163763209 + 49491225 = 12797^2 + 7035^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2899 + ... + 20854.

Almost surely, 2^213254434 is an apocalyptic number.

213254434 is a deficient number, since it is larger than the sum of its proper divisors (111486500).

213254434 is an equidigital number, since it uses as much as digits as its factorization.

213254434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23889 (or 23822 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 213254434 is about 14603.2336829895. The cubic root of 213254434 is about 597.4469613232.

The spelling of 213254434 in words is "two hundred thirteen million, two hundred fifty-four thousand, four hundred thirty-four".