1546428425 has 12 divisors (see below), whose sum is σ = 1920210060. Its totient is φ = 1235440320.

The previous prime is 1546428419. The next prime is 1546428427. The reversal of 1546428425 is 5248246451.

It can be written as a sum of positive squares in 6 ways, for example, as 369869824 + 1176558601 = 19232^2 + 34301^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1546428425 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1546428427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23870 + ... + 60519.

It is an arithmetic number, because the mean of its divisors is an integer number (160017505).

Almost surely, 2^1546428425 is an apocalyptic number.

It is an amenable number.

1546428425 is a deficient number, since it is larger than the sum of its proper divisors (373781635).

1546428425 is an equidigital number, since it uses as much as digits as its factorization.

1546428425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85132 (or 85127 counting only the distinct ones).

The product of its digits is 307200, while the sum is 41.

The square root of 1546428425 is about 39324.6541624971. The cubic root of 1546428425 is about 1156.4049481170.

The spelling of 1546428425 in words is "one billion, five hundred forty-six million, four hundred twenty-eight thousand, four hundred twenty-five".