1127641 has 2 divisors, whose sum is σ = 1127642. Its totient is φ = 1127640.

The previous prime is 1127629. The next prime is 1127657. The reversal of 1127641 is 1467211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 632025 + 495616 = 795^2 + 704^2 .

It is an emirp because it is prime and its reverse (1467211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1127641 - 2⁷ = 1127513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1127741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563820 + 563821.

It is an arithmetic number, because the mean of its divisors is an integer number (563821).

2^1127641 is an apocalyptic number.

It is an amenable number.

1127641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1127641 is an equidigital number, since it uses as much as digits as its factorization.

1127641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 22.

The square root of 1127641 is about 1061.9044213111. The cubic root of 1127641 is about 104.0855127557.

The spelling of 1127641 in words is "one million, one hundred twenty-seven thousand, six hundred forty-one".