130731427 has 2 divisors, whose sum is σ = 130731428. Its totient is φ = 130731426.

The previous prime is 130731401. The next prime is 130731431. The reversal of 130731427 is 724137031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130731427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130731395 and 130731404.

It is not a weakly prime, because it can be changed into another prime (130731437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65365713 + 65365714.

It is an arithmetic number, because the mean of its divisors is an integer number (65365714).

Almost surely, 2^130731427 is an apocalyptic number.

130731427 is a deficient number, since it is larger than the sum of its proper divisors (1).

130731427 is an equidigital number, since it uses as much as digits as its factorization.

130731427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 130731427 is about 11433.7844566005. The cubic root of 130731427 is about 507.5279925026.

Adding to 130731427 its reverse (724137031), we get a palindrome (854868458).

The spelling of 130731427 in words is "one hundred thirty million, seven hundred thirty-one thousand, four hundred twenty-seven".