131032001 has 4 divisors (see below), whose sum is σ = 131058900. Its totient is φ = 131005104.

The previous prime is 131031997. The next prime is 131032067. The reversal of 131032001 is 100230131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8708401 + 122323600 = 2951^2 + 11060^2 .

It is a cyclic number.

It is not a de Polignac number, because 131032001 - 2² = 131031997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131032091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3866 + ... + 16643.

It is an arithmetic number, because the mean of its divisors is an integer number (32764725).

Almost surely, 2^131032001 is an apocalyptic number.

It is an amenable number.

131032001 is a deficient number, since it is larger than the sum of its proper divisors (26899).

131032001 is an equidigital number, since it uses as much as digits as its factorization.

131032001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26898.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 131032001 is about 11446.9210270710. The cubic root of 131032001 is about 507.9166594532.

Adding to 131032001 its reverse (100230131), we get a palindrome (231262132).

The spelling of 131032001 in words is "one hundred thirty-one million, thirty-two thousand, one".