1150155813 has 8 divisors (see below), whose sum is σ = 1533839008. Its totient is φ = 766621584.

The previous prime is 1150155667. The next prime is 1150155833. The reversal of 1150155813 is 3185510511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1150155813 - 2⁹ = 1150155301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150155833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17770 + ... + 51147.

It is an arithmetic number, because the mean of its divisors is an integer number (191729876).

Almost surely, 2^1150155813 is an apocalyptic number.

It is an amenable number.

1150155813 is a deficient number, since it is larger than the sum of its proper divisors (383683195).

1150155813 is an equidigital number, since it uses as much as digits as its factorization.

1150155813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74483.

The product of its (nonzero) digits is 3000, while the sum is 30.

The square root of 1150155813 is about 33913.9471751667. The cubic root of 1150155813 is about 1047.7368680355.

The spelling of 1150155813 in words is "one billion, one hundred fifty million, one hundred fifty-five thousand, eight hundred thirteen".