1230861 has 8 divisors (see below), whose sum is σ = 1681344. Its totient is φ = 800480.

The previous prime is 1230829. The next prime is 1230863. The reversal of 1230861 is 1680321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1230861 - 2⁵ = 1230829 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4881 + ... + 5126.

It is an arithmetic number, because the mean of its divisors is an integer number (210168).

2^1230861 is an apocalyptic number.

It is an amenable number.

1230861 is a deficient number, since it is larger than the sum of its proper divisors (450483).

1230861 is a wasteful number, since it uses less digits than its factorization.

1230861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1230861 is about 1109.4417515129. The cubic root of 1230861 is about 107.1691214342.

The spelling of 1230861 in words is "one million, two hundred thirty thousand, eight hundred sixty-one".