1157650605 has 48 divisors (see below), whose sum is σ = 2100683520. Its totient is φ = 588639744.

The previous prime is 1157650597. The next prime is 1157650609. The reversal of 1157650605 is 5060567511.

It is not a de Polignac number, because 1157650605 - 2³ = 1157650597 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1157650605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157650609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 347136 + ... + 350454.

It is an arithmetic number, because the mean of its divisors is an integer number (43764240).

Almost surely, 2^1157650605 is an apocalyptic number.

1157650605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1157650605 is a deficient number, since it is larger than the sum of its proper divisors (943032915).

1157650605 is a wasteful number, since it uses less digits than its factorization.

1157650605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690 (or 3687 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 1157650605 is about 34024.2649443011. The cubic root of 1157650605 is about 1050.0077414395.

The spelling of 1157650605 in words is "one billion, one hundred fifty-seven million, six hundred fifty thousand, six hundred five".