31134430 has 8 divisors (see below), whose sum is σ = 56041992. Its totient is φ = 12453768.

The previous prime is 31134413. The next prime is 31134443. The reversal of 31134430 is 3443113.

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

It is a junction number, because it is equal to n+sod(n) for n = 31134398 and 31134407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1556712 + ... + 1556731.

It is an arithmetic number, because the mean of its divisors is an integer number (7005249).

Almost surely, 2^31134430 is an apocalyptic number.

31134430 is a deficient number, since it is larger than the sum of its proper divisors (24907562).

31134430 is a wasteful number, since it uses less digits than its factorization.

31134430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113450.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 31134430 is about 5579.8234739103. The cubic root of 31134430 is about 314.5914919549.

Adding to 31134430 its reverse (3443113), we get a palindrome (34577543).

The spelling of 31134430 in words is "thirty-one million, one hundred thirty-four thousand, four hundred thirty".