1148749 has 8 divisors (see below), whose sum is σ = 1319360. Its totient is φ = 979776.

The previous prime is 1148747. The next prime is 1148753. The reversal of 1148749 is 9478411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1148749 - 2¹ = 1148747 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2437 + ... + 2869.

It is an arithmetic number, because the mean of its divisors is an integer number (164920).

2^1148749 is an apocalyptic number.

It is an amenable number.

1148749 is a deficient number, since it is larger than the sum of its proper divisors (170611).

1148749 is an equidigital number, since it uses as much as digits as its factorization.

1148749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819.

The product of its digits is 8064, while the sum is 34.

The square root of 1148749 is about 1071.7970890052. The cubic root of 1148749 is about 104.7309513990.

The spelling of 1148749 in words is "one million, one hundred forty-eight thousand, seven hundred forty-nine".