1151261153 has 4 divisors (see below), whose sum is σ = 1315727040. Its totient is φ = 986795268.

The previous prime is 1151261119. The next prime is 1151261171. The reversal of 1151261153 is 3511621511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1151261153 - 2⁸ = 1151260897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151261183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82232933 + ... + 82232946.

It is an arithmetic number, because the mean of its divisors is an integer number (328931760).

Almost surely, 2^1151261153 is an apocalyptic number.

It is an amenable number.

1151261153 is a deficient number, since it is larger than the sum of its proper divisors (164465887).

1151261153 is an equidigital number, since it uses as much as digits as its factorization.

1151261153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164465886.

The product of its digits is 900, while the sum is 26.

The square root of 1151261153 is about 33930.2395069649. The cubic root of 1151261153 is about 1048.0723978426.

Adding to 1151261153 its reverse (3511621511), we get a palindrome (4662882664).

The spelling of 1151261153 in words is "one billion, one hundred fifty-one million, two hundred sixty-one thousand, one hundred fifty-three".