31045534 has 8 divisors (see below), whose sum is σ = 50150520. Its totient is φ = 14328696.

The previous prime is 31045493. The next prime is 31045537. The reversal of 31045534 is 43554013.

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 = 31045499 and 31045508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31045537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597004 + ... + 597055.

It is an arithmetic number, because the mean of its divisors is an integer number (6268815).

Almost surely, 2^31045534 is an apocalyptic number.

31045534 is a deficient number, since it is larger than the sum of its proper divisors (19104986).

31045534 is a wasteful number, since it uses less digits than its factorization.

31045534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194074.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 31045534 is about 5571.8519362955. The cubic root of 31045534 is about 314.2917960452.

Adding to 31045534 its reverse (43554013), we get a palindrome (74599547).

The spelling of 31045534 in words is "thirty-one million, forty-five thousand, five hundred thirty-four".