1423153205 has 6 divisors (see below), whose sum is σ = 1707885078. Its totient is φ = 1138455080.

The previous prime is 1423153169. The next prime is 1423153217. The reversal of 1423153205 is 5023513241.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1138522564 + 284630641 = 33742^2 + 16871^2 .

It is not a de Polignac number, because 1423153205 - 2⁶ = 1423153141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75920 + ... + 92790.

It is an arithmetic number, because the mean of its divisors is an integer number (284647513).

Almost surely, 2^1423153205 is an apocalyptic number.

It is an amenable number.

1423153205 is a deficient number, since it is larger than the sum of its proper divisors (284731873).

1423153205 is an frugal number, since it uses more digits than its factorization.

1423153205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33747 (or 16876 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1423153205 is about 37724.7028483990. The cubic root of 1423153205 is about 1124.8222151982.

Adding to 1423153205 its reverse (5023513241), we get a palindrome (6446666446).

The spelling of 1423153205 in words is "one billion, four hundred twenty-three million, one hundred fifty-three thousand, two hundred five".