1005423461 has 8 divisors (see below), whose sum is σ = 1149375360. Its totient is φ = 861551568.

The previous prime is 1005423457. The next prime is 1005423481. The reversal of 1005423461 is 1643245001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1005423461 - 2² = 1005423457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1005423461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005423451) 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 7 ways as a sum of consecutive naturals, for example, 9920 + ... + 45926.

It is an arithmetic number, because the mean of its divisors is an integer number (143671920).

Almost surely, 2^1005423461 is an apocalyptic number.

It is an amenable number.

1005423461 is a deficient number, since it is larger than the sum of its proper divisors (143951899).

1005423461 is an equidigital number, since it uses as much as digits as its factorization.

1005423461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40003.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1005423461 is about 31708.4130949501. The cubic root of 1005423461 is about 1001.8045619308.

Adding to 1005423461 its reverse (1643245001), we get a palindrome (2648668462).

The spelling of 1005423461 in words is "one billion, five million, four hundred twenty-three thousand, four hundred sixty-one".