1154131264 has 56 divisors (see below), whose sum is σ = 2690640288. Its totient is φ = 484247040.

The previous prime is 1154131261. The next prime is 1154131289. The reversal of 1154131264 is 4621314511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154131261) 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 7 ways as a sum of consecutive naturals, for example, 53902 + ... + 72205.

It is an arithmetic number, because the mean of its divisors is an integer number (48047148).

Almost surely, 2^1154131264 is an apocalyptic number.

It is an amenable number.

1154131264 is an abundant number, since it is smaller than the sum of its proper divisors (1536509024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1154131264 is a wasteful number, since it uses less digits than its factorization.

1154131264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126143 (or 126133 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 1154131264 is about 33972.5074729552. The cubic root of 1154131264 is about 1048.9426283818.

Adding to 1154131264 its reverse (4621314511), we get a palindrome (5775445775).

The spelling of 1154131264 in words is "one billion, one hundred fifty-four million, one hundred thirty-one thousand, two hundred sixty-four".