214634431 has 16 divisors (see below), whose sum is σ = 249459840. Its totient is φ = 182610720.

The previous prime is 214634411. The next prime is 214634443. The reversal of 214634431 is 134436412.

It is a cyclic number.

It is not a de Polignac number, because 214634431 - 2¹⁵ = 214601663 is a prime.

It is a super-2 number, since 2×214634431² = 92135877941387522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214634431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214634411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11161 + ... + 23533.

It is an arithmetic number, because the mean of its divisors is an integer number (15591240).

Almost surely, 2^214634431 is an apocalyptic number.

214634431 is a deficient number, since it is larger than the sum of its proper divisors (34825409).

214634431 is a wasteful number, since it uses less digits than its factorization.

214634431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12486.

The product of its digits is 6912, while the sum is 28.

The square root of 214634431 is about 14650.4071957062. The cubic root of 214634431 is about 598.7329102823.

The spelling of 214634431 in words is "two hundred fourteen million, six hundred thirty-four thousand, four hundred thirty-one".