131798001 has 4 divisors (see below), whose sum is σ = 175730672. Its totient is φ = 87865332.

The previous prime is 131797969. The next prime is 131798047. The reversal of 131798001 is 100897131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100897131 = 3 ⋅33632377.

It is not a de Polignac number, because 131798001 - 2⁵ = 131797969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131798001.

It is not an unprimeable number, because it can be changed into a prime (131798101) 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 3 ways as a sum of consecutive naturals, for example, 21966331 + ... + 21966336.

It is an arithmetic number, because the mean of its divisors is an integer number (43932668).

Almost surely, 2^131798001 is an apocalyptic number.

It is an amenable number.

131798001 is a deficient number, since it is larger than the sum of its proper divisors (43932671).

131798001 is an equidigital number, since it uses as much as digits as its factorization.

131798001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43932670.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 131798001 is about 11480.3310492337. The cubic root of 131798001 is about 508.9044804116.

The spelling of 131798001 in words is "one hundred thirty-one million, seven hundred ninety-eight thousand, one".