2125618 has 16 divisors (see below), whose sum is σ = 3545856. Its totient is φ = 947440.

The previous prime is 2125603. The next prime is 2125621. The reversal of 2125618 is 8165212.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2125592 and 2125601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255 + ... + 2077.

It is an arithmetic number, because the mean of its divisors is an integer number (221616).

2^2125618 is an apocalyptic number.

2125618 is a deficient number, since it is larger than the sum of its proper divisors (1420238).

2125618 is a wasteful number, since it uses less digits than its factorization.

2125618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889.

The product of its digits is 960, while the sum is 25.

The square root of 2125618 is about 1457.9499305532. The cubic root of 2125618 is about 128.5765414780.

It can be divided in two parts, 212 and 5618, that multiplied together give a cube (1191016 = 106³).

The spelling of 2125618 in words is "two million, one hundred twenty-five thousand, six hundred eighteen".