125257142 has 8 divisors (see below), whose sum is σ = 187934376. Its totient is φ = 62612352.

The previous prime is 125257141. The next prime is 125257157. The reversal of 125257142 is 241752521.

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 (125257141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7733 + ... + 17615.

It is an arithmetic number, because the mean of its divisors is an integer number (23491797).

Almost surely, 2^125257142 is an apocalyptic number.

125257142 is a deficient number, since it is larger than the sum of its proper divisors (62677234).

125257142 is an equidigital number, since it uses as much as digits as its factorization.

125257142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16222.

The product of its digits is 5600, while the sum is 29.

The square root of 125257142 is about 11191.8337192794. The cubic root of 125257142 is about 500.3426211678.

The spelling of 125257142 in words is "one hundred twenty-five million, two hundred fifty-seven thousand, one hundred forty-two".