125303643 has 12 divisors (see below), whose sum is σ = 186833088. Its totient is φ = 80840880.

The previous prime is 125303641. The next prime is 125303657. The reversal of 125303643 is 346303521.

It is a happy number.

125303643 is a `hidden beast` number, since 12 + 5 + 3 + 0 + 3 + 643 = 666.

It is not a de Polignac number, because 125303643 - 2¹ = 125303641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125303641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224280 + ... + 224837.

It is an arithmetic number, because the mean of its divisors is an integer number (15569424).

Almost surely, 2^125303643 is an apocalyptic number.

125303643 is a deficient number, since it is larger than the sum of its proper divisors (61529445).

125303643 is a wasteful number, since it uses less digits than its factorization.

125303643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449154 (or 449151 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 125303643 is about 11193.9109787420. The cubic root of 125303643 is about 500.4045299561.

The spelling of 125303643 in words is "one hundred twenty-five million, three hundred three thousand, six hundred forty-three".