1005345423 has 12 divisors (see below), whose sum is σ = 1528595640. Its totient is φ = 634954896.

The previous prime is 1005345401. The next prime is 1005345443. The reversal of 1005345423 is 3245435001.

1005345423 is a `hidden beast` number, since 100 + 534 + 5 + 4 + 23 = 666.

It is not a de Polignac number, because 1005345423 - 2⁵ = 1005345391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005345443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2939436 + ... + 2939777.

It is an arithmetic number, because the mean of its divisors is an integer number (127382970).

Almost surely, 2^1005345423 is an apocalyptic number.

1005345423 is a deficient number, since it is larger than the sum of its proper divisors (523250217).

1005345423 is a wasteful number, since it uses less digits than its factorization.

1005345423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5879238 (or 5879235 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1005345423 is about 31707.1825143768. The cubic root of 1005345423 is about 1001.7786422229.

The spelling of 1005345423 in words is "one billion, five million, three hundred forty-five thousand, four hundred twenty-three".