1153149 has 4 divisors (see below), whose sum is σ = 1537536. Its totient is φ = 768764.

The previous prime is 1153147. The next prime is 1153153. The reversal of 1153149 is 9413511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9413511 = 3 ⋅3137837.

It is a cyclic number.

It is not a de Polignac number, because 1153149 - 2¹ = 1153147 is a prime.

It is a D-number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192189 + ... + 192194.

It is an arithmetic number, because the mean of its divisors is an integer number (384384).

2^1153149 is an apocalyptic number.

It is an amenable number.

1153149 is a deficient number, since it is larger than the sum of its proper divisors (384387).

1153149 is an equidigital number, since it uses as much as digits as its factorization.

1153149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384386.

The product of its digits is 540, while the sum is 24.

The square root of 1153149 is about 1073.8477545723. The cubic root of 1153149 is about 104.8644964082.

The spelling of 1153149 in words is "one million, one hundred fifty-three thousand, one hundred forty-nine".