125569142 has 8 divisors (see below), whose sum is σ = 192947832. Its totient is φ = 61253200.

The previous prime is 125569141. The next prime is 125569151. The reversal of 125569142 is 241965521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125569141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765584 + ... + 765747.

It is an arithmetic number, because the mean of its divisors is an integer number (24118479).

Almost surely, 2^125569142 is an apocalyptic number.

125569142 is a deficient number, since it is larger than the sum of its proper divisors (67378690).

125569142 is a wasteful number, since it uses less digits than its factorization.

125569142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531374.

The product of its digits is 21600, while the sum is 35.

The square root of 125569142 is about 11205.7637847672. The cubic root of 125569142 is about 500.7577071796.

The spelling of 125569142 in words is "one hundred twenty-five million, five hundred sixty-nine thousand, one hundred forty-two".