2900123 has 4 divisors (see below), whose sum is σ = 2947728. Its totient is φ = 2852520.

The previous prime is 2900119. The next prime is 2900129. The reversal of 2900123 is 3210092.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2900123 - 2² = 2900119 is a prime.

It is a Duffinian number.

2900123 is a modest number, since divided by 123 gives 29 as remainder.

It is not an unprimeable number, because it can be changed into a prime (2900129) 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, 23711 + ... + 23832.

It is an arithmetic number, because the mean of its divisors is an integer number (736932).

2^2900123 is an apocalyptic number.

2900123 is a deficient number, since it is larger than the sum of its proper divisors (47605).

2900123 is an equidigital number, since it uses as much as digits as its factorization.

2900123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47604.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2900123 is about 1702.9747502532. The cubic root of 2900123 is about 142.6063308157.

The spelling of 2900123 in words is "two million, nine hundred thousand, one hundred twenty-three".