1541425609 has 2 divisors, whose sum is σ = 1541425610. Its totient is φ = 1541425608.

The previous prime is 1541425607. The next prime is 1541425631. The reversal of 1541425609 is 9065241451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1077152400 + 464273209 = 32820^2 + 21547^2 .

It is a cyclic number.

It is not a de Polignac number, because 1541425609 - 2¹ = 1541425607 is a prime.

Together with 1541425607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1541425607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770712804 + 770712805.

It is an arithmetic number, because the mean of its divisors is an integer number (770712805).

Almost surely, 2^1541425609 is an apocalyptic number.

It is an amenable number.

1541425609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1541425609 is an equidigital number, since it uses as much as digits as its factorization.

1541425609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 1541425609 is about 39260.9934795339. The cubic root of 1541425609 is about 1155.1565810342.

The spelling of 1541425609 in words is "one billion, five hundred forty-one million, four hundred twenty-five thousand, six hundred nine".