125463009 has 16 divisors (see below), whose sum is σ = 202428288. Its totient is φ = 67475712.

The previous prime is 125463007. The next prime is 125463011. The reversal of 125463009 is 900364521.

It is an interprime number because it is at equal distance from previous prime (125463007) and next prime (125463011).

It is not a de Polignac number, because 125463009 - 2¹ = 125463007 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125463007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175362 + ... + 176075.

It is an arithmetic number, because the mean of its divisors is an integer number (12651768).

Almost surely, 2^125463009 is an apocalyptic number.

It is an amenable number.

125463009 is a deficient number, since it is larger than the sum of its proper divisors (76965279).

125463009 is a wasteful number, since it uses less digits than its factorization.

125463009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351464.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 125463009 is about 11201.0271404010. The cubic root of 125463009 is about 500.6165846675.

The spelling of 125463009 in words is "one hundred twenty-five million, four hundred sixty-three thousand, nine".