131169001 has 8 divisors (see below), whose sum is σ = 137219400. Its totient is φ = 125220480.

The previous prime is 131168987. The next prime is 131169007. The reversal of 131169001 is 100961131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 38142976 + 93026025 = 6176^2 + 9645^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131169001 - 2⁵ = 131168969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131169007) 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 in 7 ways as a sum of consecutive naturals, for example, 22830 + ... + 27991.

It is an arithmetic number, because the mean of its divisors is an integer number (17152425).

Almost surely, 2^131169001 is an apocalyptic number.

It is an amenable number.

131169001 is a deficient number, since it is larger than the sum of its proper divisors (6050399).

131169001 is an equidigital number, since it uses as much as digits as its factorization.

131169001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50939.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 131169001 is about 11452.9036056364. The cubic root of 131169001 is about 508.0936145599.

The spelling of 131169001 in words is "one hundred thirty-one million, one hundred sixty-nine thousand, one".