131030641 has 4 divisors (see below), whose sum is σ = 149749312. Its totient is φ = 112311972.

The previous prime is 131030597. The next prime is 131030657. The reversal of 131030641 is 146030131.

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: 146030131 = 13 ⋅11233087.

It is a cyclic number.

It is not a de Polignac number, because 131030641 - 2⁷ = 131030513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131030941) 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, 9359325 + ... + 9359338.

It is an arithmetic number, because the mean of its divisors is an integer number (37437328).

Almost surely, 2^131030641 is an apocalyptic number.

It is an amenable number.

131030641 is a deficient number, since it is larger than the sum of its proper divisors (18718671).

131030641 is an equidigital number, since it uses as much as digits as its factorization.

131030641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18718670.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 131030641 is about 11446.8616222963. The cubic root of 131030641 is about 507.9149022004.

Adding to 131030641 its reverse (146030131), we get a palindrome (277060772).

The spelling of 131030641 in words is "one hundred thirty-one million, thirty thousand, six hundred forty-one".