1385282546 has 4 divisors (see below), whose sum is σ = 2077923822. Its totient is φ = 692641272.

The previous prime is 1385282513. The next prime is 1385282551. The reversal of 1385282546 is 6452825831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6452825831 = 43 ⋅150065717.

It can be written as a sum of positive squares in only one way, i.e., 1311236521 + 74046025 = 36211^2 + 8605^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1385282497 and 1385282506.

It is an unprimeable number.

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, 346320635 + ... + 346320638.

Almost surely, 2^1385282546 is an apocalyptic number.

1385282546 is a deficient number, since it is larger than the sum of its proper divisors (692641276).

1385282546 is an equidigital number, since it uses as much as digits as its factorization.

1385282546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692641275.

The product of its digits is 460800, while the sum is 44.

The square root of 1385282546 is about 37219.3840088737. The cubic root of 1385282546 is about 1114.7550645396.

The spelling of 1385282546 in words is "one billion, three hundred eighty-five million, two hundred eighty-two thousand, five hundred forty-six".