1211942 has 8 divisors (see below), whose sum is σ = 1856736. Its totient is φ = 593032.

The previous prime is 1211933. The next prime is 1211983. The reversal of 1211942 is 2491121.

1211942 is nontrivially palindromic in base 9.

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

It is a super-2 number, since 2×1211942² = 2937606822728, which contains 22 as substring.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 6353 + ... + 6540.

It is an arithmetic number, because the mean of its divisors is an integer number (232092).

2^1211942 is an apocalyptic number.

1211942 is a deficient number, since it is larger than the sum of its proper divisors (644794).

1211942 is a wasteful number, since it uses less digits than its factorization.

1211942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12942.

The product of its digits is 144, while the sum is 20.

The square root of 1211942 is about 1100.8823733715. The cubic root of 1211942 is about 106.6172014571.

The spelling of 1211942 in words is "one million, two hundred eleven thousand, nine hundred forty-two".