1389461 has 12 divisors (see below), whose sum is σ = 1543788. Its totient is φ = 1245312.

The previous prime is 1389439. The next prime is 1389469. The reversal of 1389461 is 1649831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1168561 + 220900 = 1081^2 + 470^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1389461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389469) 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, 29540 + ... + 29586.

It is an arithmetic number, because the mean of its divisors is an integer number (128649).

2^1389461 is an apocalyptic number.

It is an amenable number.

1389461 is a deficient number, since it is larger than the sum of its proper divisors (154327).

1389461 is an equidigital number, since it uses as much as digits as its factorization.

1389461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 101 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 1389461 is about 1178.7540031745. The cubic root of 1389461 is about 111.5874758452.

The spelling of 1389461 in words is "one million, three hundred eighty-nine thousand, four hundred sixty-one".