125621410 has 16 divisors (see below), whose sum is σ = 228195000. Its totient is φ = 49787136.

The previous prime is 125621383. The next prime is 125621411. The reversal of 125621410 is 14126521.

It can be written as a sum of positive squares in 4 ways, for example, as 98069409 + 27552001 = 9903^2 + 5249^2 .

It is not an unprimeable number, because it can be changed into a prime (125621411) 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, 56535 + ... + 58714.

Almost surely, 2^125621410 is an apocalyptic number.

125621410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125621410 is a deficient number, since it is larger than the sum of its proper divisors (102573590).

125621410 is a wasteful number, since it uses less digits than its factorization.

125621410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115365.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 125621410 is about 11208.0957347803. The cubic root of 125621410 is about 500.8271774669.

Adding to 125621410 its reverse (14126521), we get a palindrome (139747931).

The spelling of 125621410 in words is "one hundred twenty-five million, six hundred twenty-one thousand, four hundred ten".