1385461547 has 4 divisors (see below), whose sum is σ = 1386989976. Its totient is φ = 1383933120.

The previous prime is 1385461543. The next prime is 1385461601. The reversal of 1385461547 is 7451645831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1385461547 - 2² = 1385461543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1385461498 and 1385461507.

It is not an unprimeable number, because it can be changed into a prime (1385461543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762854 + ... + 764667.

It is an arithmetic number, because the mean of its divisors is an integer number (346747494).

Almost surely, 2^1385461547 is an apocalyptic number.

1385461547 is a deficient number, since it is larger than the sum of its proper divisors (1528429).

1385461547 is an equidigital number, since it uses as much as digits as its factorization.

1385461547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528428.

The product of its digits is 403200, while the sum is 44.

The square root of 1385461547 is about 37221.7886056003. The cubic root of 1385461547 is about 1114.8030772905.

The spelling of 1385461547 in words is "one billion, three hundred eighty-five million, four hundred sixty-one thousand, five hundred forty-seven".