1015254722641 has 2 divisors, whose sum is σ = 1015254722642. Its totient is φ = 1015254722640.

The previous prime is 1015254722639. The next prime is 1015254722707. The reversal of 1015254722641 is 1462274525101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1011120747025 + 4133975616 = 1005545^2 + 64296^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015254722641 - 2¹ = 1015254722639 is a prime.

Together with 1015254722639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1015254722594 and 1015254722603.

It is not a weakly prime, because it can be changed into another prime (1015254722941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507627361320 + 507627361321.

It is an arithmetic number, because the mean of its divisors is an integer number (507627361321).

Almost surely, 2^{1015254722641} is an apocalyptic number.

It is an amenable number.

1015254722641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015254722641 is an equidigital number, since it uses as much as digits as its factorization.

1015254722641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 1015254722641 in words is "one trillion, fifteen billion, two hundred fifty-four million, seven hundred twenty-two thousand, six hundred forty-one".