1145537 has 2 divisors, whose sum is σ = 1145538. Its totient is φ = 1145536.

The previous prime is 1145533. The next prime is 1145539. The reversal of 1145537 is 7355411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 790321 + 355216 = 889^2 + 596^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145537 - 2² = 1145533 is a prime.

Together with 1145539, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1145533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572768 + 572769.

It is an arithmetic number, because the mean of its divisors is an integer number (572769).

2^1145537 is an apocalyptic number.

It is an amenable number.

1145537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145537 is an equidigital number, since it uses as much as digits as its factorization.

1145537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2100, while the sum is 26.

The square root of 1145537 is about 1070.2976221594. The cubic root of 1145537 is about 104.6332480614.

The spelling of 1145537 in words is "one million, one hundred forty-five thousand, five hundred thirty-seven".