1542116497 has 2 divisors, whose sum is σ = 1542116498. Its totient is φ = 1542116496.

The previous prime is 1542116491. The next prime is 1542116509. The reversal of 1542116497 is 7946112451.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1193771601 + 348344896 = 34551^2 + 18664^2 .

It is a cyclic number.

It is not a de Polignac number, because 1542116497 - 2¹¹ = 1542114449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1542116491) 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, 771058248 + 771058249.

It is an arithmetic number, because the mean of its divisors is an integer number (771058249).

Almost surely, 2^1542116497 is an apocalyptic number.

It is an amenable number.

1542116497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542116497 is an equidigital number, since it uses as much as digits as its factorization.

1542116497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 1542116497 is about 39269.7911504505. The cubic root of 1542116497 is about 1155.3291409051.

The spelling of 1542116497 in words is "one billion, five hundred forty-two million, one hundred sixteen thousand, four hundred ninety-seven".