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131941 is a prime number
BaseRepresentation
bin100000001101100101
320200222201
4200031211
513210231
62454501
71056445
oct401545
9220881
10131941
1190147
1264431
1348094
1436125
1529161
hex20365

131941 has 2 divisors, whose sum is σ = 131942. Its totient is φ = 131940.

The previous prime is 131939. The next prime is 131947. The reversal of 131941 is 149131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103041 + 28900 = 321^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 131941 - 21 = 131939 is a prime.

Together with 131939, it forms a pair of twin primes.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65970 + 65971.

It is an arithmetic number, because the mean of its divisors is an integer number (65971).

2131941 is an apocalyptic number.

It is an amenable number.

131941 is a deficient number, since it is larger than the sum of its proper divisors (1).

131941 is an equidigital number, since it uses as much as digits as its factorization.

131941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 19.

The square root of 131941 is about 363.2368373389. The cubic root of 131941 is about 50.9088465318.

The spelling of 131941 in words is "one hundred thirty-one thousand, nine hundred forty-one".