1154155201 has 4 divisors (see below), whose sum is σ = 1154388400. Its totient is φ = 1153922004.

The previous prime is 1154155183. The next prime is 1154155229. The reversal of 1154155201 is 1025514511.

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 1154155201 - 2⁷ = 1154155073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154155001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109011 + ... + 119128.

It is an arithmetic number, because the mean of its divisors is an integer number (288597100).

Almost surely, 2^1154155201 is an apocalyptic number.

It is an amenable number.

1154155201 is a deficient number, since it is larger than the sum of its proper divisors (233199).

1154155201 is an equidigital number, since it uses as much as digits as its factorization.

1154155201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233198.

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 1154155201 is about 33972.8597707052. The cubic root of 1154155201 is about 1048.9498801179.

Adding to 1154155201 its reverse (1025514511), we get a palindrome (2179669712).

The spelling of 1154155201 in words is "one billion, one hundred fifty-four million, one hundred fifty-five thousand, two hundred one".