1212830 has 8 divisors (see below), whose sum is σ = 2183112. Its totient is φ = 485128.

The previous prime is 1212817. The next prime is 1212839. The reversal of 1212830 is 382121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1212799 and 1212808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212839) 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, 60632 + ... + 60651.

It is an arithmetic number, because the mean of its divisors is an integer number (272889).

2^1212830 is an apocalyptic number.

1212830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212830 is a deficient number, since it is larger than the sum of its proper divisors (970282).

1212830 is a wasteful number, since it uses less digits than its factorization.

1212830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121290.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1212830 is about 1101.2856123640. The cubic root of 1212830 is about 106.6432348704.

Adding to 1212830 its reverse (382121), we get a palindrome (1594951).

The spelling of 1212830 in words is "one million, two hundred twelve thousand, eight hundred thirty".