1189453 has 2 divisors, whose sum is σ = 1189454. Its totient is φ = 1189452.

The previous prime is 1189417. The next prime is 1189469. The reversal of 1189453 is 3549811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 644809 + 544644 = 803^2 + 738^2 .

It is an emirp because it is prime and its reverse (3549811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1189453 - 2¹⁷ = 1058381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1189403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594726 + 594727.

It is an arithmetic number, because the mean of its divisors is an integer number (594727).

2^1189453 is an apocalyptic number.

It is an amenable number.

1189453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189453 is an equidigital number, since it uses as much as digits as its factorization.

1189453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 31.

The square root of 1189453 is about 1090.6204656066. The cubic root of 1189453 is about 105.9536108870.

The spelling of 1189453 in words is "one million, one hundred eighty-nine thousand, four hundred fifty-three".