1005450079 has 4 divisors (see below), whose sum is σ = 1005755976. Its totient is φ = 1005144184.

The previous prime is 1005450073. The next prime is 1005450101. The reversal of 1005450079 is 9700545001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9700545001 = 7 ⋅1385792143.

It is a cyclic number.

It is not a de Polignac number, because 1005450079 - 2³ = 1005450071 is a prime.

It is a super-2 number, since 2×1005450079² = 2021859722722212482, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1005450079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005450071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147964 + ... + 154609.

It is an arithmetic number, because the mean of its divisors is an integer number (251438994).

Almost surely, 2^1005450079 is an apocalyptic number.

1005450079 is a deficient number, since it is larger than the sum of its proper divisors (305897).

1005450079 is an equidigital number, since it uses as much as digits as its factorization.

1005450079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305896.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1005450079 is about 31708.8328230479. The cubic root of 1005450079 is about 1001.8134025833.

The spelling of 1005450079 in words is "one billion, five million, four hundred fifty thousand, seventy-nine".