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131872151 is a prime number
BaseRepresentation
bin1111101110000…
…11010110010111
3100012010210120202
413313003112113
5232224402101
621030251115
73160615625
oct767032627
9305123522
10131872151
1168490554
12381b6a9b
1321422978
141372a515
15b89d36b
hex7dc3597

131872151 has 2 divisors, whose sum is σ = 131872152. Its totient is φ = 131872150.

The previous prime is 131872129. The next prime is 131872159. The reversal of 131872151 is 151278131.

It is a strong prime.

It is an emirp because it is prime and its reverse (151278131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131872151 - 210 = 131871127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131872159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65936075 + 65936076.

It is an arithmetic number, because the mean of its divisors is an integer number (65936076).

Almost surely, 2131872151 is an apocalyptic number.

131872151 is a deficient number, since it is larger than the sum of its proper divisors (1).

131872151 is an equidigital number, since it uses as much as digits as its factorization.

131872151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 29.

The square root of 131872151 is about 11483.5600316278. The cubic root of 131872151 is about 508.9998996453. Note that the first 3 decimals are identical.

The spelling of 131872151 in words is "one hundred thirty-one million, eight hundred seventy-two thousand, one hundred fifty-one".