1546940497 has 2 divisors, whose sum is σ = 1546940498. Its totient is φ = 1546940496.

The previous prime is 1546940477. The next prime is 1546940513. The reversal of 1546940497 is 7940496451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1462374081 + 84566416 = 38241^2 + 9196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1546940497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1546940497.

It is not a weakly prime, because it can be changed into another prime (1546940477) 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, 773470248 + 773470249.

It is an arithmetic number, because the mean of its divisors is an integer number (773470249).

Almost surely, 2^1546940497 is an apocalyptic number.

It is an amenable number.

1546940497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1546940497 is an equidigital number, since it uses as much as digits as its factorization.

1546940497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 1546940497 is about 39331.1644500897. The cubic root of 1546940497 is about 1156.5325749410.

The spelling of 1546940497 in words is "one billion, five hundred forty-six million, nine hundred forty thousand, four hundred ninety-seven".