31048681 has 8 divisors (see below), whose sum is σ = 32949504. Its totient is φ = 29156160.

The previous prime is 31048669. The next prime is 31048687. The reversal of 31048681 is 18684013.

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

It is a cyclic number.

It is not a de Polignac number, because 31048681 - 2⁵ = 31048649 is a prime.

It is a super-2 number, since 2×31048681² = 1928041183679522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31048687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6736 + ... + 10366.

It is an arithmetic number, because the mean of its divisors is an integer number (4118688).

Almost surely, 2^31048681 is an apocalyptic number.

It is an amenable number.

31048681 is a deficient number, since it is larger than the sum of its proper divisors (1900823).

31048681 is a wasteful number, since it uses less digits than its factorization.

31048681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 31048681 is about 5572.1343307569. The cubic root of 31048681 is about 314.3024153167.

The spelling of 31048681 in words is "thirty-one million, forty-eight thousand, six hundred eighty-one".