31477113 has 8 divisors (see below), whose sum is σ = 46632800. Its totient is φ = 20984724.

The previous prime is 31477111. The next prime is 31477141. The reversal of 31477113 is 31177413.

It is not a de Polignac number, because 31477113 - 2¹ = 31477111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1165819 = 31477113 / (3 + 1 + 4 + 7 + 7 + 1 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31477111) by changing a digit.

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, 582883 + ... + 582936.

It is an arithmetic number, because the mean of its divisors is an integer number (5829100).

Almost surely, 2^31477113 is an apocalyptic number.

It is an amenable number.

31477113 is a deficient number, since it is larger than the sum of its proper divisors (15155687).

31477113 is a wasteful number, since it uses less digits than its factorization.

31477113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165828 (or 1165822 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 31477113 is about 5610.4467736536. The cubic root of 31477113 is about 315.7414732437.

The spelling of 31477113 in words is "thirty-one million, four hundred seventy-seven thousand, one hundred thirteen".