125136102 has 96 divisors (see below), whose sum is σ = 324626400. Its totient is φ = 31836672.

The previous prime is 125136049. The next prime is 125136103. The reversal of 125136102 is 201631521.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125136103) 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 47 ways as a sum of consecutive naturals, for example, 110274 + ... + 111402.

It is an arithmetic number, because the mean of its divisors is an integer number (3381525).

Almost surely, 2^125136102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125136102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162313200).

125136102 is an abundant number, since it is smaller than the sum of its proper divisors (199490298).

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

125136102 is a wasteful number, since it uses less digits than its factorization.

125136102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 125136102 is about 11186.4248980628. The cubic root of 125136102 is about 500.1814035109.

Adding to 125136102 its reverse (201631521), we get a palindrome (326767623).

The spelling of 125136102 in words is "one hundred twenty-five million, one hundred thirty-six thousand, one hundred two".