131005401 has 8 divisors (see below), whose sum is σ = 182268480. Its totient is φ = 83539632.

The previous prime is 131005397. The next prime is 131005409. The reversal of 131005401 is 104500131.

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

It is not a de Polignac number, because 131005401 - 2² = 131005397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131005409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949246 + ... + 949383.

It is an arithmetic number, because the mean of its divisors is an integer number (22783560).

Almost surely, 2^131005401 is an apocalyptic number.

It is an amenable number.

131005401 is a deficient number, since it is larger than the sum of its proper divisors (51263079).

131005401 is a wasteful number, since it uses less digits than its factorization.

131005401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898655.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 131005401 is about 11445.7590836082. The cubic root of 131005401 is about 507.8822874490.

Adding to 131005401 its reverse (104500131), we get a palindrome (235505532).

The spelling of 131005401 in words is "one hundred thirty-one million, five thousand, four hundred one".