131030461 has 4 divisors (see below), whose sum is σ = 131109372. Its totient is φ = 130951552.

The previous prime is 131030453. The next prime is 131030477. The reversal of 131030461 is 164030131.

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 126990361 + 4040100 = 11269^2 + 2010^2 .

It is a cyclic number.

It is not a de Polignac number, because 131030461 - 2³ = 131030453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131030411) 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, 36910 + ... + 40303.

It is an arithmetic number, because the mean of its divisors is an integer number (32777343).

Almost surely, 2^131030461 is an apocalyptic number.

It is an amenable number.

131030461 is a deficient number, since it is larger than the sum of its proper divisors (78911).

131030461 is an equidigital number, since it uses as much as digits as its factorization.

131030461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78910.

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

The square root of 131030461 is about 11446.8537598766. The cubic root of 131030461 is about 507.9146696220.

Adding to 131030461 its reverse (164030131), we get a palindrome (295060592).

The spelling of 131030461 in words is "one hundred thirty-one million, thirty thousand, four hundred sixty-one".