1134661251 has 4 divisors (see below), whose sum is σ = 1512881672. Its totient is φ = 756440832.

The previous prime is 1134661249. The next prime is 1134661271. The reversal of 1134661251 is 1521664311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1134661251 - 2¹ = 1134661249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1134661271) 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, 189110206 + ... + 189110211.

It is an arithmetic number, because the mean of its divisors is an integer number (378220418).

Almost surely, 2^1134661251 is an apocalyptic number.

1134661251 is a deficient number, since it is larger than the sum of its proper divisors (378220421).

1134661251 is an equidigital number, since it uses as much as digits as its factorization.

1134661251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378220420.

The product of its digits is 4320, while the sum is 30.

The square root of 1134661251 is about 33684.7332036340. The cubic root of 1134661251 is about 1043.0106459767.

The spelling of 1134661251 in words is "one billion, one hundred thirty-four million, six hundred sixty-one thousand, two hundred fifty-one".