2123354 has 4 divisors (see below), whose sum is σ = 3185034. Its totient is φ = 1061676.

The previous prime is 2123353. The next prime is 2123357. The reversal of 2123354 is 4533212.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 2036329 + 87025 = 1427^2 + 295^2 .

It is a d-powerful number, because it can be written as 2⁹ + 1 + 2¹⁹ + 3² + 3¹³ + 5³ + 4⁶ .

It is not an unprimeable number, because it can be changed into a prime (2123353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530837 + ... + 530840.

2^2123354 is an apocalyptic number.

2123354 is a deficient number, since it is larger than the sum of its proper divisors (1061680).

2123354 is a wasteful number, since it uses less digits than its factorization.

2123354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061679.

The product of its digits is 720, while the sum is 20.

The square root of 2123354 is about 1457.1732909987. The cubic root of 2123354 is about 128.5308762173.

Adding to 2123354 its reverse (4533212), we get a palindrome (6656566).

The spelling of 2123354 in words is "two million, one hundred twenty-three thousand, three hundred fifty-four".