118002001 has 8 divisors (see below), whose sum is σ = 127194984. Its totient is φ = 108825600.

The previous prime is 118001963. The next prime is 118002047. The reversal of 118002001 is 100200811.

It can be written as a sum of positive squares in 4 ways, for example, as 12960000 + 105042001 = 3600^2 + 10249^2 .

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

It is not a de Polignac number, because 118002001 - 2⁹ = 118001489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118002601) 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, 13425 + ... + 20401.

It is an arithmetic number, because the mean of its divisors is an integer number (15899373).

Almost surely, 2^118002001 is an apocalyptic number.

It is an amenable number.

118002001 is a deficient number, since it is larger than the sum of its proper divisors (9192983).

118002001 is a wasteful number, since it uses less digits than its factorization.

118002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8291.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 118002001 is about 10862.8725943003. The cubic root of 118002001 is about 490.4895856342.

Adding to 118002001 its reverse (100200811), we get a palindrome (218202812).

The spelling of 118002001 in words is "one hundred eighteen million, two thousand, one".