2123070 has 16 divisors (see below), whose sum is σ = 5095440. Its totient is φ = 566144.

The previous prime is 2123063. The next prime is 2123081. The reversal of 2123070 is 703212.

It is a Harshad number since it is a multiple of its sum of digits (15).

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

It is a congruent number.

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, 35355 + ... + 35414.

It is an arithmetic number, because the mean of its divisors is an integer number (318465).

2^2123070 is an apocalyptic number.

2123070 is an abundant number, since it is smaller than the sum of its proper divisors (2972370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123070 is a wasteful number, since it uses less digits than its factorization.

2123070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70779.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 2123070 is about 1457.0758387949. The cubic root of 2123070 is about 128.5251455986.

Adding to 2123070 its reverse (703212), we get a palindrome (2826282).

The spelling of 2123070 in words is "two million, one hundred twenty-three thousand, seventy".