125466921 has 8 divisors (see below), whose sum is σ = 185876960. Its totient is φ = 83644596.

The previous prime is 125466911. The next prime is 125466941. The reversal of 125466921 is 129664521.

It is not a de Polignac number, because 125466921 - 2⁶ = 125466857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125466911) 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, 2323435 + ... + 2323488.

It is an arithmetic number, because the mean of its divisors is an integer number (23234620).

Almost surely, 2^125466921 is an apocalyptic number.

It is an amenable number.

125466921 is a deficient number, since it is larger than the sum of its proper divisors (60410039).

125466921 is an equidigital number, since it uses as much as digits as its factorization.

125466921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4646932 (or 4646926 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 125466921 is about 11201.2017658821. The cubic root of 125466921 is about 500.6217877727.

The spelling of 125466921 in words is "one hundred twenty-five million, four hundred sixty-six thousand, nine hundred twenty-one".