1156262085 has 36 divisors (see below), whose sum is σ = 2202960396. Its totient is φ = 560609280.

The previous prime is 1156262083. The next prime is 1156262143. The reversal of 1156262085 is 5802626511.

1156262085 is a `hidden beast` number, since 1 + 1 + 5 + 626 + 20 + 8 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 665949636 + 490312449 = 25806^2 + 22143^2 .

It is not a de Polignac number, because 1156262085 - 2¹ = 1156262083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156262083) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 100732 + ... + 111621.

Almost surely, 2^1156262085 is an apocalyptic number.

1156262085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1156262085 is a deficient number, since it is larger than the sum of its proper divisors (1046698311).

1156262085 is a wasteful number, since it uses less digits than its factorization.

1156262085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212386 (or 212372 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 1156262085 is about 34003.8539727484. The cubic root of 1156262085 is about 1049.5877701526.

Adding to 1156262085 its reverse (5802626511), we get a palindrome (6958888596).

It can be divided in two parts, 115626 and 2085, that added together give a palindrome (117711).

The spelling of 1156262085 in words is "one billion, one hundred fifty-six million, two hundred sixty-two thousand, eighty-five".