1137553 has 2 divisors, whose sum is σ = 1137554. Its totient is φ = 1137552.

The previous prime is 1137551. The next prime is 1137569. The reversal of 1137553 is 3557311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 831744 + 305809 = 912^2 + 553^2 .

It is a cyclic number.

It is not a de Polignac number, because 1137553 - 2¹ = 1137551 is a prime.

Together with 1137551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1137551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568776 + 568777.

It is an arithmetic number, because the mean of its divisors is an integer number (568777).

2^1137553 is an apocalyptic number.

It is an amenable number.

1137553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1137553 is an equidigital number, since it uses as much as digits as its factorization.

1137553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1575, while the sum is 25.

The square root of 1137553 is about 1066.5612968789. The cubic root of 1137553 is about 104.3895951718.

The spelling of 1137553 in words is "one million, one hundred thirty-seven thousand, five hundred fifty-three".