1128737 has 2 divisors, whose sum is σ = 1128738. Its totient is φ = 1128736.

The previous prime is 1128731. The next prime is 1128761. The reversal of 1128737 is 7378211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1002001 + 126736 = 1001^2 + 356^2 .

It is an emirp because it is prime and its reverse (7378211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1128737 - 2¹⁶ = 1063201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1128731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564368 + 564369.

It is an arithmetic number, because the mean of its divisors is an integer number (564369).

2^1128737 is an apocalyptic number.

It is an amenable number.

1128737 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128737 is an equidigital number, since it uses as much as digits as its factorization.

1128737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 29.

The square root of 1128737 is about 1062.4203499557. The cubic root of 1128737 is about 104.1192234795.

The spelling of 1128737 in words is "one million, one hundred twenty-eight thousand, seven hundred thirty-seven".