1145551125 has 32 divisors (see below), whose sum is σ = 1919998080. Its totient is φ = 606537600.

The previous prime is 1145551109. The next prime is 1145551151. The reversal of 1145551125 is 5211555411.

It is not a de Polignac number, because 1145551125 - 2⁴ = 1145551109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1145551092 and 1145551101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41137 + ... + 63113.

It is an arithmetic number, because the mean of its divisors is an integer number (59999940).

Almost surely, 2^1145551125 is an apocalyptic number.

1145551125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145551125 is a deficient number, since it is larger than the sum of its proper divisors (774446955).

1145551125 is a wasteful number, since it uses less digits than its factorization.

1145551125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22134 (or 22124 counting only the distinct ones).

The product of its digits is 5000, while the sum is 30.

The square root of 1145551125 is about 33845.9912692774. The cubic root of 1145551125 is about 1046.3367811838.

The spelling of 1145551125 in words is "one billion, one hundred forty-five million, five hundred fifty-one thousand, one hundred twenty-five".