31430114 has 4 divisors (see below), whose sum is σ = 47145174. Its totient is φ = 15715056.

The previous prime is 31430081. The next prime is 31430117. The reversal of 31430114 is 41103413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41103413 = 13 ⋅3161801.

It can be written as a sum of positive squares in only one way, i.e., 25836889 + 5593225 = 5083^2 + 2365^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31430092 and 31430101.

It is not an unprimeable number, because it can be changed into a prime (31430117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7857527 + ... + 7857530.

Almost surely, 2^31430114 is an apocalyptic number.

31430114 is a deficient number, since it is larger than the sum of its proper divisors (15715060).

31430114 is a wasteful number, since it uses less digits than its factorization.

31430114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15715059.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 31430114 is about 5606.2566833851. The cubic root of 31430114 is about 315.5842486877.

Adding to 31430114 its reverse (41103413), we get a palindrome (72533527).

The spelling of 31430114 in words is "thirty-one million, four hundred thirty thousand, one hundred fourteen".