1154132011 has 4 divisors (see below), whose sum is σ = 1154454192. Its totient is φ = 1153809832.

The previous prime is 1154131987. The next prime is 1154132039. The reversal of 1154132011 is 1102314511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1102314511 = 53 ⋅20798387.

It is a cyclic number.

It is not a de Polignac number, because 1154132011 - 2²¹ = 1152034859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1154132011.

It is not an unprimeable number, because it can be changed into a prime (1154132711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155656 + ... + 162901.

It is an arithmetic number, because the mean of its divisors is an integer number (288613548).

Almost surely, 2^1154132011 is an apocalyptic number.

1154132011 is a deficient number, since it is larger than the sum of its proper divisors (322181).

1154132011 is an equidigital number, since it uses as much as digits as its factorization.

1154132011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322180.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1154132011 is about 33972.5184671375. The cubic root of 1154132011 is about 1048.9428546876.

Adding to 1154132011 its reverse (1102314511), we get a palindrome (2256446522).

The spelling of 1154132011 in words is "one billion, one hundred fifty-four million, one hundred thirty-two thousand, eleven".