1136921 has 2 divisors, whose sum is σ = 1136922. Its totient is φ = 1136920.

The previous prime is 1136917. The next prime is 1136939. The reversal of 1136921 is 1296311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 846400 + 290521 = 920^2 + 539^2 .

It is a cyclic number.

It is not a de Polignac number, because 1136921 - 2² = 1136917 is a prime.

It is not a weakly prime, because it can be changed into another prime (1136951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568460 + 568461.

It is an arithmetic number, because the mean of its divisors is an integer number (568461).

2^1136921 is an apocalyptic number.

It is an amenable number.

1136921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1136921 is an equidigital number, since it uses as much as digits as its factorization.

1136921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 23.

The square root of 1136921 is about 1066.2649764482. The cubic root of 1136921 is about 104.3702593852.

The spelling of 1136921 in words is "one million, one hundred thirty-six thousand, nine hundred twenty-one".