31969113 has 8 divisors (see below), whose sum is σ = 46500576. Its totient is φ = 19375200.

The previous prime is 31969079. The next prime is 31969121. The reversal of 31969113 is 31196913.

It is a happy number.

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

It is not a de Polignac number, because 31969113 - 2¹⁴ = 31952729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 968761 = 31969113 / (3 + 1 + 9 + 6 + 9 + 1 + 1 + 3).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31969183) 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 7 ways as a sum of consecutive naturals, for example, 484348 + ... + 484413.

It is an arithmetic number, because the mean of its divisors is an integer number (5812572).

Almost surely, 2^31969113 is an apocalyptic number.

31969113 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31969113 is a deficient number, since it is larger than the sum of its proper divisors (14531463).

31969113 is a wasteful number, since it uses less digits than its factorization.

31969113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968775.

The product of its digits is 4374, while the sum is 33.

The square root of 31969113 is about 5654.1235395064. The cubic root of 31969113 is about 317.3780315610.

The spelling of 31969113 in words is "thirty-one million, nine hundred sixty-nine thousand, one hundred thirteen".