1459156355981 has 2 divisors, whose sum is σ = 1459156355982. Its totient is φ = 1459156355980.

The previous prime is 1459156355927. The next prime is 1459156356043. The reversal of 1459156355981 is 1895536519541.

It is an a-pointer prime, because the next prime (1459156356043) can be obtained adding 1459156355981 to its sum of digits (62).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1416435599881 + 42720756100 = 1190141^2 + 206690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1459156355981 is a prime.

It is a super-2 number, since 2×1459156355981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1459156355581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 729578177990 + 729578177991.

It is an arithmetic number, because the mean of its divisors is an integer number (729578177991).

Almost surely, 2^{1459156355981} is an apocalyptic number.

It is an amenable number.

1459156355981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1459156355981 is an equidigital number, since it uses as much as digits as its factorization.

1459156355981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160000, while the sum is 62.

The spelling of 1459156355981 in words is "one trillion, four hundred fifty-nine billion, one hundred fifty-six million, three hundred fifty-five thousand, nine hundred eighty-one".