130731401 has 2 divisors, whose sum is σ = 130731402. Its totient is φ = 130731400.

The previous prime is 130731389. The next prime is 130731427. The reversal of 130731401 is 104137031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99102025 + 31629376 = 9955^2 + 5624^2 .

It is a cyclic number.

It is not a de Polignac number, because 130731401 - 2¹⁰ = 130730377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130731431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65365700 + 65365701.

It is an arithmetic number, because the mean of its divisors is an integer number (65365701).

Almost surely, 2^130731401 is an apocalyptic number.

It is an amenable number.

130731401 is a deficient number, since it is larger than the sum of its proper divisors (1).

130731401 is an equidigital number, since it uses as much as digits as its factorization.

130731401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 130731401 is about 11433.7833196191. The cubic root of 130731401 is about 507.5279588567.

Adding to 130731401 its reverse (104137031), we get a palindrome (234868432).

The spelling of 130731401 in words is "one hundred thirty million, seven hundred thirty-one thousand, four hundred one".