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131028853 is a prime number
BaseRepresentation
bin1111100111101…
…01011101110101
3100010112221210111
413303311131311
5232020410403
621000223021
73150504214
oct763653565
9303487714
10131028853
1167a64a0a
1237a6aa71
13211b8b87
141358b07b
15b78356d
hex7cf5775

131028853 has 2 divisors, whose sum is σ = 131028854. Its totient is φ = 131028852.

The previous prime is 131028851. The next prime is 131028857. The reversal of 131028853 is 358820131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119617969 + 11410884 = 10937^2 + 3378^2 .

It is a cyclic number.

It is not a de Polignac number, because 131028853 - 21 = 131028851 is a prime.

Together with 131028851, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131028851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65514426 + 65514427.

It is an arithmetic number, because the mean of its divisors is an integer number (65514427).

Almost surely, 2131028853 is an apocalyptic number.

It is an amenable number.

131028853 is a deficient number, since it is larger than the sum of its proper divisors (1).

131028853 is an equidigital number, since it uses as much as digits as its factorization.

131028853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 131028853 is about 11446.7835220205. The cubic root of 131028853 is about 507.9125919114.

Adding to 131028853 its reverse (358820131), we get a palindrome (489848984).

The spelling of 131028853 in words is "one hundred thirty-one million, twenty-eight thousand, eight hundred fifty-three".