2145118001 has 8 divisors (see below), whose sum is σ = 2311502760. Its totient is φ = 1978929792.

The previous prime is 2145117967. The next prime is 2145118007. The reversal of 2145118001 is 1008115412.

It can be written as a sum of positive squares in 4 ways, for example, as 148815601 + 1996302400 = 12199^2 + 44680^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2145118001 - 2²⁶ = 2078009137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145118007) 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, 26060 + ... + 70493.

It is an arithmetic number, because the mean of its divisors is an integer number (288937845).

Almost surely, 2^2145118001 is an apocalyptic number.

It is an amenable number.

2145118001 is a deficient number, since it is larger than the sum of its proper divisors (166384759).

2145118001 is a wasteful number, since it uses less digits than its factorization.

2145118001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98275.

The product of its (nonzero) digits is 320, while the sum is 23.

The square root of 2145118001 is about 46315.4186097891. The cubic root of 2145118001 is about 1289.6852387902.

The spelling of 2145118001 in words is "two billion, one hundred forty-five million, one hundred eighteen thousand, one".