1219957 has 2 divisors, whose sum is σ = 1219958. Its totient is φ = 1219956.

The previous prime is 1219951. The next prime is 1219961. The reversal of 1219957 is 7599121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1052676 + 167281 = 1026^2 + 409^2 .

It is an emirp because it is prime and its reverse (7599121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1219957 - 2³ = 1219949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1219951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609978 + 609979.

It is an arithmetic number, because the mean of its divisors is an integer number (609979).

2^1219957 is an apocalyptic number.

It is an amenable number.

1219957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1219957 is an equidigital number, since it uses as much as digits as its factorization.

1219957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 34.

The square root of 1219957 is about 1104.5166363618. The cubic root of 1219957 is about 106.8517176237.

The spelling of 1219957 in words is "one million, two hundred nineteen thousand, nine hundred fifty-seven".