1173541 has 2 divisors, whose sum is σ = 1173542. Its totient is φ = 1173540.

The previous prime is 1173539. The next prime is 1173551. The reversal of 1173541 is 1453711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1113025 + 60516 = 1055^2 + 246^2 .

It is a cyclic number.

It is not a de Polignac number, because 1173541 - 2¹ = 1173539 is a prime.

Together with 1173539, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1173511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586770 + 586771.

It is an arithmetic number, because the mean of its divisors is an integer number (586771).

2^1173541 is an apocalyptic number.

It is an amenable number.

1173541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1173541 is an equidigital number, since it uses as much as digits as its factorization.

1173541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420, while the sum is 22.

The square root of 1173541 is about 1083.3009738757. The cubic root of 1173541 is about 105.4790207081.

The spelling of 1173541 in words is "one million, one hundred seventy-three thousand, five hundred forty-one".