1152044251 has 4 divisors (see below), whose sum is σ = 1152308104. Its totient is φ = 1151780400.

The previous prime is 1152044249. The next prime is 1152044293. The reversal of 1152044251 is 1524402511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1524402511 = 1487 ⋅1025153.

It is a cyclic number.

It is not a de Polignac number, because 1152044251 - 2¹ = 1152044249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152044221) 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, 125265 + ... + 134146.

It is an arithmetic number, because the mean of its divisors is an integer number (288077026).

Almost surely, 2^1152044251 is an apocalyptic number.

1152044251 is a deficient number, since it is larger than the sum of its proper divisors (263853).

1152044251 is an equidigital number, since it uses as much as digits as its factorization.

1152044251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263852.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1152044251 is about 33941.7773694897. Note that the first 3 decimals coincide. The cubic root of 1152044251 is about 1048.3099800149.

Adding to 1152044251 its reverse (1524402511), we get a palindrome (2676446762).

The spelling of 1152044251 in words is "one billion, one hundred fifty-two million, forty-four thousand, two hundred fifty-one".