1423431165 has 64 divisors (see below), whose sum is σ = 2621880576. Its totient is φ = 653217792.

The previous prime is 1423431137. The next prime is 1423431167. The reversal of 1423431165 is 5611343241.

It is not a de Polignac number, because 1423431165 - 2⁵ = 1423431133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423431167) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 352699 + ... + 356711.

It is an arithmetic number, because the mean of its divisors is an integer number (40966884).

Almost surely, 2^1423431165 is an apocalyptic number.

1423431165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1423431165 is a deficient number, since it is larger than the sum of its proper divisors (1198449411).

1423431165 is a wasteful number, since it uses less digits than its factorization.

1423431165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158.

The product of its digits is 8640, while the sum is 30.

The square root of 1423431165 is about 37728.3867267075. The cubic root of 1423431165 is about 1124.8954411467.

The spelling of 1423431165 in words is "one billion, four hundred twenty-three million, four hundred thirty-one thousand, one hundred sixty-five".