1157096565 has 24 divisors (see below), whose sum is σ = 2028176280. Its totient is φ = 610182144.

The previous prime is 1157096543. The next prime is 1157096569. The reversal of 1157096565 is 5656907511.

1157096565 is a `hidden beast` number, since 1 + 15 + 70 + 9 + 6 + 565 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1572516 + 1155524049 = 1254^2 + 33993^2 .

It is not a de Polignac number, because 1157096565 - 2⁵ = 1157096533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1157096565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157096569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140452 + ... + 148461.

It is an arithmetic number, because the mean of its divisors is an integer number (84507345).

Almost surely, 2^1157096565 is an apocalyptic number.

1157096565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1157096565 is a deficient number, since it is larger than the sum of its proper divisors (871079715).

1157096565 is a wasteful number, since it uses less digits than its factorization.

1157096565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289013 (or 289010 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The square root of 1157096565 is about 34016.1221334825. The cubic root of 1157096565 is about 1049.8402069758.

The spelling of 1157096565 in words is "one billion, one hundred fifty-seven million, ninety-six thousand, five hundred sixty-five".