214147031 has 4 divisors (see below), whose sum is σ = 244739472. Its totient is φ = 183554592.

The previous prime is 214147007. The next prime is 214147051. The reversal of 214147031 is 130741412.

It is a happy number.

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 214147031 - 2²² = 209952727 is a prime.

It is a super-2 number, since 2×214147031² = 91717901772229922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214146988 and 214147006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214147051) 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, 15296210 + ... + 15296223.

It is an arithmetic number, because the mean of its divisors is an integer number (61184868).

Almost surely, 2^214147031 is an apocalyptic number.

214147031 is a deficient number, since it is larger than the sum of its proper divisors (30592441).

214147031 is an equidigital number, since it uses as much as digits as its factorization.

214147031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30592440.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 214147031 is about 14633.7633915545. The cubic root of 214147031 is about 598.2793583335.

Adding to 214147031 its reverse (130741412), we get a palindrome (344888443).

The spelling of 214147031 in words is "two hundred fourteen million, one hundred forty-seven thousand, thirty-one".