1153072071 has 16 divisors (see below), whose sum is σ = 1729881600. Its totient is φ = 758982744.

The previous prime is 1153072061. The next prime is 1153072093. The reversal of 1153072071 is 1702703511.

It is a happy number.

It is not a de Polignac number, because 1153072071 - 2⁶ = 1153072007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153072051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268161 + ... + 272426.

It is an arithmetic number, because the mean of its divisors is an integer number (108117600).

Almost surely, 2^1153072071 is an apocalyptic number.

1153072071 is a deficient number, since it is larger than the sum of its proper divisors (576809529).

1153072071 is an equidigital number, since it uses as much as digits as its factorization.

1153072071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540675 (or 540669 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 1153072071 is about 33956.9149217063. The cubic root of 1153072071 is about 1048.6216444587.

Adding to 1153072071 its reverse (1702703511), we get a palindrome (2855775582).

The spelling of 1153072071 in words is "one billion, one hundred fifty-three million, seventy-two thousand, seventy-one".