125131016 has 32 divisors (see below), whose sum is σ = 254492280. Its totient is φ = 57446400.

The previous prime is 125130991. The next prime is 125131037. The reversal of 125131016 is 610131521.

It can be written as a sum of positive squares in 4 ways, for example, as 57002500 + 68128516 = 7550^2 + 8254^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5645 + ... + 16796.

Almost surely, 2^125131016 is an apocalyptic number.

It is an amenable number.

125131016 is an abundant number, since it is smaller than the sum of its proper divisors (129361264).

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

125131016 is a wasteful number, since it uses less digits than its factorization.

125131016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22505 (or 22501 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 125131016 is about 11186.1975666444. The cubic root of 125131016 is about 500.1746270037.

Adding to 125131016 its reverse (610131521), we get a palindrome (735262537).

The spelling of 125131016 in words is "one hundred twenty-five million, one hundred thirty-one thousand, sixteen".