Search a number
-
+
131374871 is a prime number
BaseRepresentation
bin1111101010010…
…01111100010111
3100011012112102222
413311021330113
5232112443441
621011452555
73153445055
oct765117427
9304175388
10131374871
1168180981
1237bb715b
13212aa514
141363b1d5
15b800d4b
hex7d49f17

131374871 has 2 divisors, whose sum is σ = 131374872. Its totient is φ = 131374870.

The previous prime is 131374853. The next prime is 131374883. The reversal of 131374871 is 178473131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131374871 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131374801) 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, 65687435 + 65687436.

It is an arithmetic number, because the mean of its divisors is an integer number (65687436).

Almost surely, 2131374871 is an apocalyptic number.

131374871 is a deficient number, since it is larger than the sum of its proper divisors (1).

131374871 is an equidigital number, since it uses as much as digits as its factorization.

131374871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 35.

The square root of 131374871 is about 11461.8877590037. The cubic root of 131374871 is about 508.3592935830.

The spelling of 131374871 in words is "one hundred thirty-one million, three hundred seventy-four thousand, eight hundred seventy-one".