125116436 has 6 divisors (see below), whose sum is σ = 218953770. Its totient is φ = 62558216.

The previous prime is 125116427. The next prime is 125116471. The reversal of 125116436 is 634611521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 115691536 + 9424900 = 10756^2 + 3070^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125116399 and 125116408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15639551 + ... + 15639558.

It is an arithmetic number, because the mean of its divisors is an integer number (36492295).

Almost surely, 2^125116436 is an apocalyptic number.

It is an amenable number.

125116436 is a deficient number, since it is larger than the sum of its proper divisors (93837334).

125116436 is a wasteful number, since it uses less digits than its factorization.

125116436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31279113 (or 31279111 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 125116436 is about 11185.5458516784. The cubic root of 125116436 is about 500.1551998210.

Adding to 125116436 its reverse (634611521), we get a palindrome (759727957).

The spelling of 125116436 in words is "one hundred twenty-five million, one hundred sixteen thousand, four hundred thirty-six".