1125125142 has 16 divisors (see below), whose sum is σ = 2252622960. Its totient is φ = 374646272.

The previous prime is 1125125117. The next prime is 1125125159. The reversal of 1125125142 is 2415215211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92667 + ... + 104102.

It is an arithmetic number, because the mean of its divisors is an integer number (140788935).

Almost surely, 2^1125125142 is an apocalyptic number.

1125125142 is an abundant number, since it is smaller than the sum of its proper divisors (1127497818).

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

1125125142 is a wasteful number, since it uses less digits than its factorization.

1125125142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197727.

The product of its digits is 800, while the sum is 24.

The square root of 1125125142 is about 33542.8851174135. The cubic root of 1125125142 is about 1040.0804739257.

The spelling of 1125125142 in words is "one billion, one hundred twenty-five million, one hundred twenty-five thousand, one hundred forty-two".