31141047 has 8 divisors (see below), whose sum is σ = 47453056. Its totient is φ = 17794872.

The previous prime is 31141007. The next prime is 31141067. The reversal of 31141047 is 74014113.

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

It is not a de Polignac number, because 31141047 - 2¹² = 31136951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1482907 = 31141047 / (3 + 1 + 1 + 4 + 1 + 0 + 4 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31141007) 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, 741433 + ... + 741474.

It is an arithmetic number, because the mean of its divisors is an integer number (5931632).

Almost surely, 2^31141047 is an apocalyptic number.

31141047 is a deficient number, since it is larger than the sum of its proper divisors (16312009).

31141047 is a wasteful number, since it uses less digits than its factorization.

31141047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482917.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 31141047 is about 5580.4163823141. The cubic root of 31141047 is about 314.6137770848.

The spelling of 31141047 in words is "thirty-one million, one hundred forty-one thousand, forty-seven".