1115879001 has 16 divisors (see below), whose sum is σ = 1525402368. Its totient is φ = 725168000.

The previous prime is 1115878999. The next prime is 1115879003. The reversal of 1115879001 is 1009785111.

It is an interprime number because it is at equal distance from previous prime (1115878999) and next prime (1115879003).

It is a cyclic number.

It is not a de Polignac number, because 1115879001 - 2¹ = 1115878999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1115879003) 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, 179851 + ... + 185951.

It is an arithmetic number, because the mean of its divisors is an integer number (95337648).

Almost surely, 2^1115879001 is an apocalyptic number.

It is an amenable number.

1115879001 is a deficient number, since it is larger than the sum of its proper divisors (409523367).

1115879001 is a wasteful number, since it uses less digits than its factorization.

1115879001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7632.

The product of its (nonzero) digits is 2520, while the sum is 33.

The square root of 1115879001 is about 33404.7751227276. The cubic root of 1115879001 is about 1037.2235488530.

The spelling of 1115879001 in words is "one billion, one hundred fifteen million, eight hundred seventy-nine thousand, one".