1506013650121 has 2 divisors, whose sum is σ = 1506013650122. Its totient is φ = 1506013650120.

The previous prime is 1506013650077. The next prime is 1506013650157. The reversal of 1506013650121 is 1210563106051.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1192201934400 + 313811715721 = 1091880^2 + 560189^2 .

It is a cyclic number.

It is not a de Polignac number, because 1506013650121 - 2³⁵ = 1471653911753 is a prime.

It is a super-2 number, since 2×1506013650121² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1506013650181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 753006825060 + 753006825061.

It is an arithmetic number, because the mean of its divisors is an integer number (753006825061).

Almost surely, 2^{1506013650121} is an apocalyptic number.

It is an amenable number.

1506013650121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1506013650121 is an equidigital number, since it uses as much as digits as its factorization.

1506013650121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

Adding to 1506013650121 its reverse (1210563106051), we get a palindrome (2716576756172).

The spelling of 1506013650121 in words is "one trillion, five hundred six billion, thirteen million, six hundred fifty thousand, one hundred twenty-one".