1210955 has 8 divisors (see below), whose sum is σ = 1484352. Its totient is φ = 947968.

The previous prime is 1210949. The next prime is 1210967. The reversal of 1210955 is 5590121.

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 1210955 - 2⁴ = 1210939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1210955.

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 7 ways as a sum of consecutive naturals, for example, 2342 + ... + 2811.

It is an arithmetic number, because the mean of its divisors is an integer number (185544).

2^1210955 is an apocalyptic number.

1210955 is a deficient number, since it is larger than the sum of its proper divisors (273397).

1210955 is an equidigital number, since it uses as much as digits as its factorization.

1210955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5205.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 1210955 is about 1100.4340052906. The cubic root of 1210955 is about 106.5882507435.

The spelling of 1210955 in words is "one million, two hundred ten thousand, nine hundred fifty-five".