1220953 has 2 divisors, whose sum is σ = 1220954. Its totient is φ = 1220952.

The previous prime is 1220927. The next prime is 1220969. The reversal of 1220953 is 3590221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 870489 + 350464 = 933^2 + 592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220953 is a prime.

It is equal to p₉₄₄₁₄ and since 1220953 and 94414 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1220903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610476 + 610477.

It is an arithmetic number, because the mean of its divisors is an integer number (610477).

2^1220953 is an apocalyptic number.

It is an amenable number.

1220953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220953 is an equidigital number, since it uses as much as digits as its factorization.

1220953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1220953 is about 1104.9674203342. The cubic root of 1220953 is about 106.8807884192.

The spelling of 1220953 in words is "one million, two hundred twenty thousand, nine hundred fifty-three".