1561412 has 6 divisors (see below), whose sum is σ = 2732478. Its totient is φ = 780704.

The previous prime is 1561393. The next prime is 1561421. The reversal of 1561412 is 2141651.

It can be written as a sum of positive squares in only one way, i.e., 1473796 + 87616 = 1214^2 + 296^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 195173 + ... + 195180.

It is an arithmetic number, because the mean of its divisors is an integer number (455413).

2^1561412 is an apocalyptic number.

It is an amenable number.

1561412 is a deficient number, since it is larger than the sum of its proper divisors (1171066).

1561412 is a wasteful number, since it uses less digits than its factorization.

1561412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390357 (or 390355 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 1561412 is about 1249.5647242140. The cubic root of 1561412 is about 116.0127809936.

The spelling of 1561412 in words is "one million, five hundred sixty-one thousand, four hundred twelve".