15303046981 has 2 divisors, whose sum is σ = 15303046982. Its totient is φ = 15303046980.

The previous prime is 15303046951. The next prime is 15303047041. The reversal of 15303046981 is 18964030351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14128888225 + 1174158756 = 118865^2 + 34266^2 .

It is a cyclic number.

It is not a de Polignac number, because 15303046981 - 2⁵ = 15303046949 is a prime.

It is a super-2 number, since 2×15303046981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15303046901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7651523490 + 7651523491.

It is an arithmetic number, because the mean of its divisors is an integer number (7651523491).

Almost surely, 2^15303046981 is an apocalyptic number.

It is an amenable number.

15303046981 is a deficient number, since it is larger than the sum of its proper divisors (1).

15303046981 is an equidigital number, since it uses as much as digits as its factorization.

15303046981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 15303046981 in words is "fifteen billion, three hundred three million, forty-six thousand, nine hundred eighty-one".