1234861 has 4 divisors (see below), whose sum is σ = 1246300. Its totient is φ = 1223424.

The previous prime is 1234853. The next prime is 1234873. The reversal of 1234861 is 1684321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1684321 = 41 ⋅41081.

It can be written as a sum of positive squares in 2 ways, for example, as 649636 + 585225 = 806^2 + 765^2 .

It is a cyclic number.

It is not a de Polignac number, because 1234861 - 2³ = 1234853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5556 + ... + 5773.

It is an arithmetic number, because the mean of its divisors is an integer number (311575).

2^1234861 is an apocalyptic number.

It is an amenable number.

1234861 is a deficient number, since it is larger than the sum of its proper divisors (11439).

1234861 is a wasteful number, since it uses less digits than its factorization.

1234861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11438.

The product of its digits is 1152, while the sum is 25.

The square root of 1234861 is about 1111.2429977282. The cubic root of 1234861 is about 107.2850871302.

The spelling of 1234861 in words is "one million, two hundred thirty-four thousand, eight hundred sixty-one".