12031534 has 8 divisors (see below), whose sum is σ = 18629568. Its totient is φ = 5821680.

The previous prime is 12031517. The next prime is 12031543. The reversal of 12031534 is 43513021.

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

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, 96967 + ... + 97090.

It is an arithmetic number, because the mean of its divisors is an integer number (2328696).

Almost surely, 2^12031534 is an apocalyptic number.

12031534 is a deficient number, since it is larger than the sum of its proper divisors (6598034).

12031534 is a wasteful number, since it uses less digits than its factorization.

12031534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194090.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12031534 is about 3468.6501697346. The cubic root of 12031534 is about 229.1432143200.

Adding to 12031534 its reverse (43513021), we get a palindrome (55544555).

The spelling of 12031534 in words is "twelve million, thirty-one thousand, five hundred thirty-four".