31124485 has 8 divisors (see below), whose sum is σ = 42685056. Its totient is φ = 21342480.

The previous prime is 31124479. The next prime is 31124503. The reversal of 31124485 is 58442113.

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

It is not a de Polignac number, because 31124485 - 2³ = 31124477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444601 + ... + 444670.

It is an arithmetic number, because the mean of its divisors is an integer number (5335632).

Almost surely, 2^31124485 is an apocalyptic number.

31124485 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31124485 is a deficient number, since it is larger than the sum of its proper divisors (11560571).

31124485 is an equidigital number, since it uses as much as digits as its factorization.

31124485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889283.

The product of its digits is 3840, while the sum is 28.

The square root of 31124485 is about 5578.9322455108. The cubic root of 31124485 is about 314.5579926471.

Adding to 31124485 its reverse (58442113), we get a palindrome (89566598).

The spelling of 31124485 in words is "thirty-one million, one hundred twenty-four thousand, four hundred eighty-five".