1005565157 has 8 divisors (see below), whose sum is σ = 1008676800. Its totient is φ = 1002459744.

The previous prime is 1005565153. The next prime is 1005565189. The reversal of 1005565157 is 7515655001.

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 1005565157 - 2² = 1005565153 is a prime.

It is a super-2 number, since 2×1005565157² = 2022322569944869298, 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 (1005565151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694208 + ... + 695654.

It is an arithmetic number, because the mean of its divisors is an integer number (126084600).

Almost surely, 2^1005565157 is an apocalyptic number.

It is an amenable number.

1005565157 is a deficient number, since it is larger than the sum of its proper divisors (3111643).

1005565157 is an equidigital number, since it uses as much as digits as its factorization.

1005565157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115.

The product of its (nonzero) digits is 26250, while the sum is 35.

The square root of 1005565157 is about 31710.6473759209. The cubic root of 1005565157 is about 1001.8516217143.

The spelling of 1005565157 in words is "one billion, five million, five hundred sixty-five thousand, one hundred fifty-seven".