1151354231 has 2 divisors, whose sum is σ = 1151354232. Its totient is φ = 1151354230.

The previous prime is 1151354227. The next prime is 1151354293. The reversal of 1151354231 is 1324531511.

It is a weak prime.

It is an emirp because it is prime and its reverse (1324531511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1151354231 - 2² = 1151354227 is a prime.

It is a super-2 number, since 2×1151354231² = 2651233130483202722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1151354231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151354221) 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 as a sum of consecutive naturals, namely, 575677115 + 575677116.

It is an arithmetic number, because the mean of its divisors is an integer number (575677116).

Almost surely, 2^1151354231 is an apocalyptic number.

1151354231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151354231 is an equidigital number, since it uses as much as digits as its factorization.

1151354231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 26.

The square root of 1151354231 is about 33931.6110875979. The cubic root of 1151354231 is about 1048.1006421883.

Adding to 1151354231 its reverse (1324531511), we get a palindrome (2475885742).

The spelling of 1151354231 in words is "one billion, one hundred fifty-one million, three hundred fifty-four thousand, two hundred thirty-one".