125142140 has 24 divisors (see below), whose sum is σ = 269902752. Its totient is φ = 48703680.

The previous prime is 125142119. The next prime is 125142167. The reversal of 125142140 is 41241521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 83816 + ... + 85295.

It is an arithmetic number, because the mean of its divisors is an integer number (11245948).

Almost surely, 2^125142140 is an apocalyptic number.

125142140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125142140 is an abundant number, since it is smaller than the sum of its proper divisors (144760612).

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

125142140 is a wasteful number, since it uses less digits than its factorization.

125142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169157 (or 169155 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 125142140 is about 11186.6947754911. The cubic root of 125142140 is about 500.1894482097.

Adding to 125142140 its reverse (41241521), we get a palindrome (166383661).

The spelling of 125142140 in words is "one hundred twenty-five million, one hundred forty-two thousand, one hundred forty".