2115158801 has 4 divisors (see below), whose sum is σ = 2417324352. Its totient is φ = 1812993252.

The previous prime is 2115158797. The next prime is 2115158807. The reversal of 2115158801 is 1088515112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2115158801 - 2² = 2115158797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2115158807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151082765 + ... + 151082778.

It is an arithmetic number, because the mean of its divisors is an integer number (604331088).

Almost surely, 2^2115158801 is an apocalyptic number.

It is an amenable number.

2115158801 is a deficient number, since it is larger than the sum of its proper divisors (302165551).

2115158801 is an equidigital number, since it uses as much as digits as its factorization.

2115158801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302165550.

The product of its (nonzero) digits is 3200, while the sum is 32.

The square root of 2115158801 is about 45990.8556236998. The cubic root of 2115158801 is about 1283.6530574763.

The spelling of 2115158801 in words is "two billion, one hundred fifteen million, one hundred fifty-eight thousand, eight hundred one".