1151979 has 8 divisors (see below), whose sum is σ = 1546752. Its totient is φ = 762600.

The previous prime is 1151963. The next prime is 1151981. The reversal of 1151979 is 9791511.

It is a happy number.

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

It is not a de Polignac number, because 1151979 - 2⁴ = 1151963 is a prime.

1151979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1151999) 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, 819 + ... + 1724.

It is an arithmetic number, because the mean of its divisors is an integer number (193344).

2^1151979 is an apocalyptic number.

1151979 is a deficient number, since it is larger than the sum of its proper divisors (394773).

1151979 is a wasteful number, since it uses less digits than its factorization.

1151979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697.

The product of its digits is 2835, while the sum is 33.

The square root of 1151979 is about 1073.3028463579. The cubic root of 1151979 is about 104.8290187787.

The spelling of 1151979 in words is "one million, one hundred fifty-one thousand, nine hundred seventy-nine".