131030573 has 4 divisors (see below), whose sum is σ = 131083260. Its totient is φ = 130977888.

The previous prime is 131030569. The next prime is 131030587. The reversal of 131030573 is 375030131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 375030131 = 7 ⋅53575733.

It can be written as a sum of positive squares in 2 ways, for example, as 114854089 + 16176484 = 10717^2 + 4022^2 .

It is a cyclic number.

It is not a de Polignac number, because 131030573 - 2² = 131030569 is a prime.

It is a super-2 number, since 2×131030573² = 34338022121416658, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131030513) 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, 22418 + ... + 27651.

It is an arithmetic number, because the mean of its divisors is an integer number (32770815).

Almost surely, 2^131030573 is an apocalyptic number.

It is an amenable number.

131030573 is a deficient number, since it is larger than the sum of its proper divisors (52687).

131030573 is an equidigital number, since it uses as much as digits as its factorization.

131030573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52686.

The product of its (nonzero) digits is 945, while the sum is 23.

The square root of 131030573 is about 11446.8586520495. The cubic root of 131030573 is about 507.9148143375.

The spelling of 131030573 in words is "one hundred thirty-one million, thirty thousand, five hundred seventy-three".