214140403 has 4 divisors (see below), whose sum is σ = 214193848. Its totient is φ = 214086960.

The previous prime is 214140397. The next prime is 214140457. The reversal of 214140403 is 304041412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 214140403 - 2⁵ = 214140371 is a prime.

It is a super-2 number, since 2×214140403² = 91712224394004818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214150403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20178 + ... + 28903.

It is an arithmetic number, because the mean of its divisors is an integer number (53548462).

Almost surely, 2^214140403 is an apocalyptic number.

214140403 is a deficient number, since it is larger than the sum of its proper divisors (53445).

214140403 is an equidigital number, since it uses as much as digits as its factorization.

214140403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53444.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 214140403 is about 14633.5369272094. The cubic root of 214140403 is about 598.2731858820.

Adding to 214140403 its reverse (304041412), we get a palindrome (518181815).

The spelling of 214140403 in words is "two hundred fourteen million, one hundred forty thousand, four hundred three".