1125155147 has 8 divisors (see below), whose sum is σ = 1175385600. Its totient is φ = 1075033960.

The previous prime is 1125155111. The next prime is 1125155153. The reversal of 1125155147 is 7415515211.

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

It is a cyclic number.

It is not a de Polignac number, because 1125155147 - 2¹⁰ = 1125154123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125155347) 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, 5897 + ... + 47802.

It is an arithmetic number, because the mean of its divisors is an integer number (146923200).

Almost surely, 2^1125155147 is an apocalyptic number.

1125155147 is a deficient number, since it is larger than the sum of its proper divisors (50230453).

1125155147 is an equidigital number, since it uses as much as digits as its factorization.

1125155147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54633.

The product of its digits is 7000, while the sum is 32.

The square root of 1125155147 is about 33543.3323776872. The cubic root of 1125155147 is about 1040.0897195157.

The spelling of 1125155147 in words is "one billion, one hundred twenty-five million, one hundred fifty-five thousand, one hundred forty-seven".