213880451 has 8 divisors (see below), whose sum is σ = 226631520. Its totient is φ = 201148288.

The previous prime is 213880379. The next prime is 213880483. The reversal of 213880451 is 154088312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213880451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213880351) 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, 23405 + ... + 31233.

It is an arithmetic number, because the mean of its divisors is an integer number (28328940).

Almost surely, 2^213880451 is an apocalyptic number.

213880451 is a deficient number, since it is larger than the sum of its proper divisors (12751069).

213880451 is a wasteful number, since it uses less digits than its factorization.

213880451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9453.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 213880451 is about 14624.6521668038. The cubic root of 213880451 is about 598.0310000969.

The spelling of 213880451 in words is "two hundred thirteen million, eight hundred eighty thousand, four hundred fifty-one".