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131274679 is a prime number
BaseRepresentation
bin1111101001100…
…01011110110111
3100011000110000011
413310301132313
5232101242204
621005401051
73152550004
oct764613667
9304013004
10131274679
1168112678
1237b69187
1321273a33
14136128ab
15b7d1304
hex7d317b7

131274679 has 2 divisors, whose sum is σ = 131274680. Its totient is φ = 131274678.

The previous prime is 131274653. The next prime is 131274683. The reversal of 131274679 is 976472131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131274679 - 27 = 131274551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131214679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65637339 + 65637340.

It is an arithmetic number, because the mean of its divisors is an integer number (65637340).

Almost surely, 2131274679 is an apocalyptic number.

131274679 is a deficient number, since it is larger than the sum of its proper divisors (1).

131274679 is an equidigital number, since it uses as much as digits as its factorization.

131274679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 131274679 is about 11457.5162666260. The cubic root of 131274679 is about 508.2300286597.

The spelling of 131274679 in words is "one hundred thirty-one million, two hundred seventy-four thousand, six hundred seventy-nine".