125216142 has 16 divisors (see below), whose sum is σ = 259068240. Its totient is φ = 40299392.

The previous prime is 125216123. The next prime is 125216149. The reversal of 125216142 is 241612521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125216149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359643 + ... + 359990.

It is an arithmetic number, because the mean of its divisors is an integer number (16191765).

Almost surely, 2^125216142 is an apocalyptic number.

125216142 is an abundant number, since it is smaller than the sum of its proper divisors (133852098).

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

125216142 is a wasteful number, since it uses less digits than its factorization.

125216142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719667.

The product of its digits is 960, while the sum is 24.

The square root of 125216142 is about 11190.0018766754. The cubic root of 125216142 is about 500.2880233865.

Adding to 125216142 its reverse (241612521), we get a palindrome (366828663).

The spelling of 125216142 in words is "one hundred twenty-five million, two hundred sixteen thousand, one hundred forty-two".