1400123 has 4 divisors (see below), whose sum is σ = 1432728. Its totient is φ = 1367520.

The previous prime is 1400107. The next prime is 1400131. The reversal of 1400123 is 3210041.

It is a happy number.

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 1400123 - 2⁴ = 1400107 is a prime.

It is a Duffinian number.

1400123 is a modest number, since divided by 123 gives 14 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1400143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16238 + ... + 16323.

It is an arithmetic number, because the mean of its divisors is an integer number (358182).

2^1400123 is an apocalyptic number.

1400123 is a deficient number, since it is larger than the sum of its proper divisors (32605).

1400123 is an equidigital number, since it uses as much as digits as its factorization.

1400123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32604.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1400123 is about 1183.2679324650. The cubic root of 1400123 is about 111.8721702727.

Adding to 1400123 its reverse (3210041), we get a palindrome (4610164).

The spelling of 1400123 in words is "one million, four hundred thousand, one hundred twenty-three".