1131456151 has 4 divisors (see below), whose sum is σ = 1293092752. Its totient is φ = 969819552.

The previous prime is 1131456149. The next prime is 1131456167. The reversal of 1131456151 is 1516541311.

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

It is a cyclic number.

It is not a de Polignac number, because 1131456151 - 2¹ = 1131456149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131456101) 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, 80818290 + ... + 80818303.

It is an arithmetic number, because the mean of its divisors is an integer number (323273188).

Almost surely, 2^1131456151 is an apocalyptic number.

1131456151 is a deficient number, since it is larger than the sum of its proper divisors (161636601).

1131456151 is an equidigital number, since it uses as much as digits as its factorization.

1131456151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161636600.

The product of its digits is 1800, while the sum is 28.

The square root of 1131456151 is about 33637.1245947093. The cubic root of 1131456151 is about 1042.0276489213.

Adding to 1131456151 its reverse (1516541311), we get a palindrome (2647997462).

The spelling of 1131456151 in words is "one billion, one hundred thirty-one million, four hundred fifty-six thousand, one hundred fifty-one".