1154043513 has 12 divisors (see below), whose sum is σ = 1905087808. Its totient is φ = 659453400.

The previous prime is 1154043491. The next prime is 1154043529. The reversal of 1154043513 is 3153404511.

It is a happy number.

It is not a de Polignac number, because 1154043513 - 2¹² = 1154039417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1154043013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9159013 + ... + 9159138.

Almost surely, 2^1154043513 is an apocalyptic number.

It is an amenable number.

1154043513 is a deficient number, since it is larger than the sum of its proper divisors (751044295).

1154043513 is a wasteful number, since it uses less digits than its factorization.

1154043513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18318164 (or 18318161 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1154043513 is about 33971.2159482112. The cubic root of 1154043513 is about 1048.9160432782.

The spelling of 1154043513 in words is "one billion, one hundred fifty-four million, forty-three thousand, five hundred thirteen".