1400244123 has 4 divisors (see below), whose sum is σ = 1866992168. Its totient is φ = 933496080.

The previous prime is 1400244119. The next prime is 1400244127. The reversal of 1400244123 is 3214420041.

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

It is an interprime number because it is at equal distance from previous prime (1400244119) and next prime (1400244127).

It is not a de Polignac number, because 1400244123 - 2² = 1400244119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1400244123.

It is not an unprimeable number, because it can be changed into a prime (1400244127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233374018 + ... + 233374023.

It is an arithmetic number, because the mean of its divisors is an integer number (466748042).

Almost surely, 2^1400244123 is an apocalyptic number.

1400244123 is a deficient number, since it is larger than the sum of its proper divisors (466748045).

1400244123 is an equidigital number, since it uses as much as digits as its factorization.

1400244123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466748044.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1400244123 is about 37419.8359563481. The cubic root of 1400244123 is about 1118.7539615644.

Adding to 1400244123 its reverse (3214420041), we get a palindrome (4614664164).

The spelling of 1400244123 in words is "one billion, four hundred million, two hundred forty-four thousand, one hundred twenty-three".