1154263012 has 18 divisors (see below), whose sum is σ = 2349750102. Its totient is φ = 494684064.

The previous prime is 1154263009. The next prime is 1154263013. The reversal of 1154263012 is 2103624511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1139332516 + 14930496 = 33754^2 + 3864^2 .

It is not an unprimeable number, because it can be changed into a prime (1154263013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2944353 + ... + 2944744.

Almost surely, 2^1154263012 is an apocalyptic number.

It is an amenable number.

1154263012 is an abundant number, since it is smaller than the sum of its proper divisors (1195487090).

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

1154263012 is a wasteful number, since it uses less digits than its factorization.

1154263012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5889115 (or 5889106 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1154263012 is about 33974.4464561235. The cubic root of 1154263012 is about 1048.9825403166.

Adding to 1154263012 its reverse (2103624511), we get a palindrome (3257887523).

The spelling of 1154263012 in words is "one billion, one hundred fifty-four million, two hundred sixty-three thousand, twelve".