2115254001 has 24 divisors (see below), whose sum is σ = 3360831264. Its totient is φ = 1179232320.

The previous prime is 2115253991. The next prime is 2115254039. The reversal of 2115254001 is 1004525112.

It is not a de Polignac number, because 2115254001 - 2⁶ = 2115253937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2115254101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169455 + ... + 181508.

It is an arithmetic number, because the mean of its divisors is an integer number (140034636).

Almost surely, 2^2115254001 is an apocalyptic number.

2115254001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2115254001 is a deficient number, since it is larger than the sum of its proper divisors (1245577263).

2115254001 is a wasteful number, since it uses less digits than its factorization.

2115254001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351021 (or 351014 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2115254001 is about 45991.8906004091. The cubic root of 2115254001 is about 1283.6723155950.

Adding to 2115254001 its reverse (1004525112), we get a palindrome (3119779113).

The spelling of 2115254001 in words is "two billion, one hundred fifteen million, two hundred fifty-four thousand, one".