125621235 has 12 divisors (see below), whose sum is σ = 217743552. Its totient is φ = 66997968.

The previous prime is 125621231. The next prime is 125621263. The reversal of 125621235 is 532126521.

It is a happy number.

125621235 is a `hidden beast` number, since 1 + 2 + 5 + 621 + 2 + 35 = 666.

It is not a de Polignac number, because 125621235 - 2² = 125621231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125621199 and 125621208.

It is not an unprimeable number, because it can be changed into a prime (125621231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1395747 + ... + 1395836.

It is an arithmetic number, because the mean of its divisors is an integer number (18145296).

Almost surely, 2^125621235 is an apocalyptic number.

125621235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125621235 is a deficient number, since it is larger than the sum of its proper divisors (92122317).

125621235 is a wasteful number, since it uses less digits than its factorization.

125621235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791594 (or 2791591 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 125621235 is about 11208.0879279206. The cubic root of 125621235 is about 500.8269449036.

Adding to 125621235 its reverse (532126521), we get a palindrome (657747756).

The spelling of 125621235 in words is "one hundred twenty-five million, six hundred twenty-one thousand, two hundred thirty-five".