1652631521 has 2 divisors, whose sum is σ = 1652631522. Its totient is φ = 1652631520.

The previous prime is 1652631517. The next prime is 1652631559. The reversal of 1652631521 is 1251362561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 832611025 + 820020496 = 28855^2 + 28636^2 .

It is a cyclic number.

It is not a de Polignac number, because 1652631521 - 2² = 1652631517 is a prime.

It is not a weakly prime, because it can be changed into another prime (1652531521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826315760 + 826315761.

It is an arithmetic number, because the mean of its divisors is an integer number (826315761).

Almost surely, 2^1652631521 is an apocalyptic number.

It is an amenable number.

1652631521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1652631521 is an equidigital number, since it uses as much as digits as its factorization.

1652631521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 32.

The square root of 1652631521 is about 40652.5709027117. The cubic root of 1652631521 is about 1182.2936144241.

The spelling of 1652631521 in words is "one billion, six hundred fifty-two million, six hundred thirty-one thousand, five hundred twenty-one".