125063909 has 8 divisors (see below), whose sum is σ = 134708640. Its totient is φ = 115725456.

The previous prime is 125063891. The next prime is 125063923. The reversal of 125063909 is 909360521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125063909 - 2¹⁶ = 124998373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125063929) 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, 75722 + ... + 77355.

It is an arithmetic number, because the mean of its divisors is an integer number (16838580).

Almost surely, 2^125063909 is an apocalyptic number.

125063909 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

125063909 is a deficient number, since it is larger than the sum of its proper divisors (9644731).

125063909 is a wasteful number, since it uses less digits than its factorization.

125063909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153139.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 125063909 is about 11183.1976196435. The cubic root of 125063909 is about 500.0851974820.

The spelling of 125063909 in words is "one hundred twenty-five million, sixty-three thousand, nine hundred nine".