1040144423 has 2 divisors, whose sum is σ = 1040144424. Its totient is φ = 1040144422.

The previous prime is 1040144419. The next prime is 1040144431. The reversal of 1040144423 is 3244410401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1040144423 - 2² = 1040144419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040114423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520072211 + 520072212.

It is an arithmetic number, because the mean of its divisors is an integer number (520072212).

Almost surely, 2^1040144423 is an apocalyptic number.

1040144423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040144423 is an equidigital number, since it uses as much as digits as its factorization.

1040144423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1040144423 is about 32251.2700990209. The cubic root of 1040144423 is about 1013.2063002137.

Adding to 1040144423 its reverse (3244410401), we get a palindrome (4284554824).

The spelling of 1040144423 in words is "one billion, forty million, one hundred forty-four thousand, four hundred twenty-three".