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131074 = 265537
BaseRepresentation
bin100000000000000010
320122210121
4200000002
513143244
62450454
71054066
oct400002
9218717
10131074
118a529
1263a2a
1347878
1435aa6
1528c84
hex20002

131074 has 4 divisors (see below), whose sum is σ = 196614. Its totient is φ = 65536.

The previous prime is 131071. The next prime is 131101. The reversal of 131074 is 470131.

131074 = T254 + T255 + ... + T257.

131074 is nontrivially palindromic in base 4 and base 16.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66049 + 65025 = 257^2 + 255^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (2) of ones.

In principle, a polygon with 131074 sides can be constructed with ruler and compass.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32767 + ... + 32770.

2131074 is an apocalyptic number.

131074 is a deficient number, since it is larger than the sum of its proper divisors (65540).

131074 is an equidigital number, since it uses as much as digits as its factorization.

131074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65539.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 131074 is about 362.0414340928. The cubic root of 131074 is about 50.7970920277.

The spelling of 131074 in words is "one hundred thirty-one thousand, seventy-four".

Divisors: 1 2 65537 131074