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31141 = 1119149

31141 has 8 divisors (see below), whose sum is σ = 36000. Its totient is φ = 26640.

The previous prime is 31139. The next prime is 31147. The reversal of 31141 is 14113.

It is a happy number.

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 31141 - 21 = 31139 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31147) 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, 135 + ... + 283.

It is an arithmetic number, because the mean of its divisors is an integer number (4500).

231141 is an apocalyptic number.

It is an amenable number.

31141 is a deficient number, since it is larger than the sum of its proper divisors (4859).

31141 is a wasteful number, since it uses less digits than its factorization.

31141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179.

The product of its digits is 12, while the sum is 10.

The square root of 31141 is about 176.4681274338. The cubic root of 31141 is about 31.4613618807.

Adding to 31141 its reverse (14113), we get a palindrome (45254).

It can be divided in two parts, 31 and 141, that multiplied together give a triangular number (4371 = T93).

The spelling of 31141 in words is "thirty-one thousand, one hundred forty-one".

Divisors: 1 11 19 149 209 1639 2831 31141