1145143125 has 120 divisors (see below), whose sum is σ = 2391234560. Its totient is φ = 517104000.

The previous prime is 1145143121. The next prime is 1145143147. The reversal of 1145143125 is 5213415411.

1145143125 is a `hidden beast` number, since 114 + 514 + 31 + 2 + 5 = 666.

It is not a de Polignac number, because 1145143125 - 2² = 1145143121 is a prime.

It is a super-2 number, since 2×1145143125² = 2622705553469531250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145143121) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 5000511 + ... + 5000739.

Almost surely, 2^1145143125 is an apocalyptic number.

1145143125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145143125 is an abundant number, since it is smaller than the sum of its proper divisors (1246091435).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145143125 is a wasteful number, since it uses less digits than its factorization.

1145143125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 371 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1145143125 is about 33839.9634308313. The cubic root of 1145143125 is about 1046.2125451749.

Adding to 1145143125 its reverse (5213415411), we get a palindrome (6358558536).

It can be divided in two parts, 11451431 and 25, that added together give a square (11451456 = 3384²).

The spelling of 1145143125 in words is "one billion, one hundred forty-five million, one hundred forty-three thousand, one hundred twenty-five".