130459949981 has 2 divisors, whose sum is σ = 130459949982. Its totient is φ = 130459949980.

The previous prime is 130459949923. The next prime is 130459949989. The reversal of 130459949981 is 189949954031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127195656025 + 3264293956 = 356645^2 + 57134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130459949981 is a prime.

It is a super-2 number, since 2×130459949981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130459949989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65229974990 + 65229974991.

It is an arithmetic number, because the mean of its divisors is an integer number (65229974991).

Almost surely, 2^130459949981 is an apocalyptic number.

It is an amenable number.

130459949981 is a deficient number, since it is larger than the sum of its proper divisors (1).

130459949981 is an equidigital number, since it uses as much as digits as its factorization.

130459949981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12597120, while the sum is 62.

The spelling of 130459949981 in words is "one hundred thirty billion, four hundred fifty-nine million, nine hundred forty-nine thousand, nine hundred eighty-one".