1212115 has 8 divisors (see below), whose sum is σ = 1465200. Its totient is φ = 962592.

The previous prime is 1212103. The next prime is 1212119. The reversal of 1212115 is 5112121.

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 1212115 - 2⁹ = 1211603 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212095 and 1212104.

It is not an unprimeable number, because it can be changed into a prime (1212119) 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 7 ways as a sum of consecutive naturals, for example, 69 + ... + 1558.

It is an arithmetic number, because the mean of its divisors is an integer number (183150).

2^1212115 is an apocalyptic number.

1212115 is a deficient number, since it is larger than the sum of its proper divisors (253085).

1212115 is a wasteful number, since it uses less digits than its factorization.

1212115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781.

The product of its digits is 20, while the sum is 13.

The square root of 1212115 is about 1100.9609439031. The cubic root of 1212115 is about 106.6222742791.

Adding to 1212115 its reverse (5112121), we get a palindrome (6324236).

The spelling of 1212115 in words is "one million, two hundred twelve thousand, one hundred fifteen".