1125064155 has 16 divisors (see below), whose sum is σ = 1800836640. Its totient is φ = 599789568.

The previous prime is 1125064151. The next prime is 1125064189. The reversal of 1125064155 is 5514605211.

It is not a de Polignac number, because 1125064155 - 2² = 1125064151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1125064151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26389 + ... + 54281.

It is an arithmetic number, because the mean of its divisors is an integer number (112552290).

Almost surely, 2^1125064155 is an apocalyptic number.

1125064155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1125064155 is a deficient number, since it is larger than the sum of its proper divisors (675772485).

1125064155 is a wasteful number, since it uses less digits than its factorization.

1125064155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30590.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 1125064155 is about 33541.9760151366. The cubic root of 1125064155 is about 1040.0616811913.

Adding to 1125064155 its reverse (5514605211), we get a palindrome (6639669366).

The spelling of 1125064155 in words is "one billion, one hundred twenty-five million, sixty-four thousand, one hundred fifty-five".