1157065071 has 16 divisors (see below), whose sum is σ = 1616267520. Its totient is φ = 734888000.

The previous prime is 1157065043. The next prime is 1157065079. The reversal of 1157065071 is 1705607511.

It is a cyclic number.

It is not a de Polignac number, because 1157065071 - 2⁷ = 1157064943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157065079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16086 + ... + 50723.

It is an arithmetic number, because the mean of its divisors is an integer number (101016720).

Almost surely, 2^1157065071 is an apocalyptic number.

1157065071 is a deficient number, since it is larger than the sum of its proper divisors (459202449).

1157065071 is a wasteful number, since it uses less digits than its factorization.

1157065071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67086.

The product of its (nonzero) digits is 7350, while the sum is 33.

The square root of 1157065071 is about 34015.6592027848. The cubic root of 1157065071 is about 1049.8306819951.

The spelling of 1157065071 in words is "one billion, one hundred fifty-seven million, sixty-five thousand, seventy-one".