1542480409 has 2 divisors, whose sum is σ = 1542480410. Its totient is φ = 1542480408.

The previous prime is 1542480403. The next prime is 1542480419. The reversal of 1542480409 is 9040842451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1310222809 + 232257600 = 36197^2 + 15240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1542480409 - 2⁷ = 1542480281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1542480403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771240204 + 771240205.

It is an arithmetic number, because the mean of its divisors is an integer number (771240205).

Almost surely, 2^1542480409 is an apocalyptic number.

It is an amenable number.

1542480409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542480409 is an equidigital number, since it uses as much as digits as its factorization.

1542480409 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1542480409 is about 39274.4243624270. The cubic root of 1542480409 is about 1155.4200127840.

The spelling of 1542480409 in words is "one billion, five hundred forty-two million, four hundred eighty thousand, four hundred nine".