2118025 has 48 divisors (see below), whose sum is σ = 3472000. Its totient is φ = 1270080.

The previous prime is 2118023. The next prime is 2118029. The reversal of 2118025 is 5208112.

It is not a de Polignac number, because 2118025 - 2¹ = 2118023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 2117993 and 2118011.

It is not an unprimeable number, because it can be changed into a prime (2118023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111466 + ... + 111484.

2^2118025 is an apocalyptic number.

2118025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2118025 is a deficient number, since it is larger than the sum of its proper divisors (1353975).

2118025 is a wasteful number, since it uses less digits than its factorization.

2118025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2118025 is about 1455.3436020404. The cubic root of 2118025 is about 128.4232611202.

The spelling of 2118025 in words is "two million, one hundred eighteen thousand, twenty-five".