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131323349 is a prime number
BaseRepresentation
bin1111101001111…
…01010111010101
3100011002220202202
413310331113111
5232104321344
621010414245
73153141623
oct764752725
9304086682
10131323349
11681461a3
1237b91385
132128cc31
1413626513
15b7e094e
hex7d3d5d5

131323349 has 2 divisors, whose sum is σ = 131323350. Its totient is φ = 131323348.

The previous prime is 131323303. The next prime is 131323373. The reversal of 131323349 is 943323131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112678225 + 18645124 = 10615^2 + 4318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131323349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131322349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65661674 + 65661675.

It is an arithmetic number, because the mean of its divisors is an integer number (65661675).

Almost surely, 2131323349 is an apocalyptic number.

It is an amenable number.

131323349 is a deficient number, since it is larger than the sum of its proper divisors (1).

131323349 is an equidigital number, since it uses as much as digits as its factorization.

131323349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 29.

The square root of 131323349 is about 11459.6400030716. The cubic root of 131323349 is about 508.2928295477.

The spelling of 131323349 in words is "one hundred thirty-one million, three hundred twenty-three thousand, three hundred forty-nine".