1005516157 has 4 divisors (see below), whose sum is σ = 1058438080. Its totient is φ = 952594236.

The previous prime is 1005516151. The next prime is 1005516209. The reversal of 1005516157 is 7516155001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005516157 is a prime.

It is a super-2 number, since 2×1005516157² = 2022125483976097298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005516151) 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, 26460933 + ... + 26460970.

It is an arithmetic number, because the mean of its divisors is an integer number (264609520).

Almost surely, 2^1005516157 is an apocalyptic number.

It is an amenable number.

1005516157 is a deficient number, since it is larger than the sum of its proper divisors (52921923).

1005516157 is an equidigital number, since it uses as much as digits as its factorization.

1005516157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52921922.

The product of its (nonzero) digits is 5250, while the sum is 31.

The square root of 1005516157 is about 31709.8747553503. The cubic root of 1005516157 is about 1001.8353484353.

The spelling of 1005516157 in words is "one billion, five million, five hundred sixteen thousand, one hundred fifty-seven".