1139473 has 2 divisors, whose sum is σ = 1139474. Its totient is φ = 1139472.

The previous prime is 1139471. The next prime is 1139483. The reversal of 1139473 is 3749311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1096209 + 43264 = 1047^2 + 208^2 .

It is an emirp because it is prime and its reverse (3749311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1139473 - 2¹ = 1139471 is a prime.

Together with 1139471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1139471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569736 + 569737.

It is an arithmetic number, because the mean of its divisors is an integer number (569737).

2^1139473 is an apocalyptic number.

It is an amenable number.

1139473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139473 is an equidigital number, since it uses as much as digits as its factorization.

1139473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 28.

The square root of 1139473 is about 1067.4610063136. The cubic root of 1139473 is about 104.4482929102.

The spelling of 1139473 in words is "one million, one hundred thirty-nine thousand, four hundred seventy-three".