1148979 has 16 divisors (see below), whose sum is σ = 1747872. Its totient is φ = 665088.

The previous prime is 1148977. The next prime is 1148981. The reversal of 1148979 is 9798411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1148977) and next prime (1148981).

It is not a de Polignac number, because 1148979 - 2¹ = 1148977 is a prime.

It is a super-3 number, since 3×1148979³ = 4550483333571353217, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

1148979 is a lucky number.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1148971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204 + ... + 1529.

It is an arithmetic number, because the mean of its divisors is an integer number (109242).

2^1148979 is an apocalyptic number.

1148979 is a deficient number, since it is larger than the sum of its proper divisors (598893).

1148979 is a wasteful number, since it uses less digits than its factorization.

1148979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766.

The product of its digits is 18144, while the sum is 39.

The square root of 1148979 is about 1071.9043800638. The cubic root of 1148979 is about 104.7379405996.

The spelling of 1148979 in words is "one million, one hundred forty-eight thousand, nine hundred seventy-nine".