213912433 has 8 divisors (see below), whose sum is σ = 245631680. Its totient is φ = 182483280.

The previous prime is 213912427. The next prime is 213912449. The reversal of 213912433 is 334219312.

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

It is not a de Polignac number, because 213912433 - 2⁹ = 213911921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213912403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70938 + ... + 73891.

It is an arithmetic number, because the mean of its divisors is an integer number (30703960).

Almost surely, 2^213912433 is an apocalyptic number.

It is an amenable number.

213912433 is a deficient number, since it is larger than the sum of its proper divisors (31719247).

213912433 is a wasteful number, since it uses less digits than its factorization.

213912433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145047.

The product of its digits is 3888, while the sum is 28.

The square root of 213912433 is about 14625.7455536461. The cubic root of 213912433 is about 598.0608068949.

The spelling of 213912433 in words is "two hundred thirteen million, nine hundred twelve thousand, four hundred thirty-three".