1125000143 has 16 divisors (see below), whose sum is σ = 1205318880. Its totient is φ = 1046332416.

The previous prime is 1125000067. The next prime is 1125000157. The reversal of 1125000143 is 3410005211.

It is a cyclic number.

It is not a de Polignac number, because 1125000143 - 2¹⁰ = 1124999119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125002143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525371 + ... + 527507.

It is an arithmetic number, because the mean of its divisors is an integer number (75332430).

Almost surely, 2^1125000143 is an apocalyptic number.

1125000143 is a deficient number, since it is larger than the sum of its proper divisors (80318737).

1125000143 is a wasteful number, since it uses less digits than its factorization.

1125000143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1125000143 is about 33541.0217942149. The cubic root of 1125000143 is about 1040.0419555929.

Adding to 1125000143 its reverse (3410005211), we get a palindrome (4535005354).

The spelling of 1125000143 in words is "one billion, one hundred twenty-five million, one hundred forty-three", and thus it is an aban number.