Search a number
-
+
131061 = 37792
BaseRepresentation
bin11111111111110101
320122210010
4133333311
513143221
62450433
71054050
oct377765
9218703
10131061
118a517
1263a19
1347868
1435a97
1528c76
hex1fff5

131061 has 12 divisors (see below), whose sum is σ = 202272. Its totient is φ = 73944.

The previous prime is 131059. The next prime is 131063. The reversal of 131061 is 160131.

131061 = T190 + T191 + ... + T196.

It is an interprime number because it is at equal distance from previous prime (131059) and next prime (131063).

It is not a de Polignac number, because 131061 - 21 = 131059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1620 + ... + 1698.

It is an arithmetic number, because the mean of its divisors is an integer number (16856).

2131061 is an apocalyptic number.

It is an amenable number.

131061 is a deficient number, since it is larger than the sum of its proper divisors (71211).

131061 is an frugal number, since it uses more digits than its factorization.

131061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 131061 is about 362.0234799015. The cubic root of 131061 is about 50.7954126099.

Adding to 131061 its reverse (160131), we get a palindrome (291192).

The spelling of 131061 in words is "one hundred thirty-one thousand, sixty-one".

Divisors: 1 3 7 21 79 237 553 1659 6241 18723 43687 131061