1541438641 has 2 divisors, whose sum is σ = 1541438642. Its totient is φ = 1541438640.

The previous prime is 1541438629. The next prime is 1541438681. The reversal of 1541438641 is 1468341451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1069028416 + 472410225 = 32696^2 + 21735^2 .

It is a cyclic number.

It is not a de Polignac number, because 1541438641 - 2⁵ = 1541438609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1541438641.

It is not a weakly prime, because it can be changed into another prime (1541438621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770719320 + 770719321.

It is an arithmetic number, because the mean of its divisors is an integer number (770719321).

Almost surely, 2^1541438641 is an apocalyptic number.

It is an amenable number.

1541438641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1541438641 is an equidigital number, since it uses as much as digits as its factorization.

1541438641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 37.

The square root of 1541438641 is about 39261.1594454367. The cubic root of 1541438641 is about 1155.1598364531.

The spelling of 1541438641 in words is "one billion, five hundred forty-one million, four hundred thirty-eight thousand, six hundred forty-one".