131259017 has 16 divisors (see below), whose sum is σ = 140562000. Its totient is φ = 122330880.

The previous prime is 131259013. The next prime is 131259031. The reversal of 131259017 is 710952131.

It can be written as a sum of positive squares in 8 ways, for example, as 1207801 + 130051216 = 1099^2 + 11404^2 .

It is not a de Polignac number, because 131259017 - 2² = 131259013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131259013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159467 + ... + 160287.

It is an arithmetic number, because the mean of its divisors is an integer number (8785125).

Almost surely, 2^131259017 is an apocalyptic number.

It is an amenable number.

131259017 is a deficient number, since it is larger than the sum of its proper divisors (9302983).

131259017 is a wasteful number, since it uses less digits than its factorization.

131259017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 131259017 is about 11456.8327647740. The cubic root of 131259017 is about 508.2098160405.

The spelling of 131259017 in words is "one hundred thirty-one million, two hundred fifty-nine thousand, seventeen".