125484981 has 4 divisors (see below), whose sum is σ = 167313312. Its totient is φ = 83656652.

The previous prime is 125484977. The next prime is 125485039. The reversal of 125484981 is 189484521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125484981 - 2² = 125484977 is a prime.

It is a super-2 number, since 2×125484981² = 31492960913140722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125484781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20914161 + ... + 20914166.

It is an arithmetic number, because the mean of its divisors is an integer number (41828328).

Almost surely, 2^125484981 is an apocalyptic number.

It is an amenable number.

125484981 is a deficient number, since it is larger than the sum of its proper divisors (41828331).

125484981 is an equidigital number, since it uses as much as digits as its factorization.

125484981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41828330.

The product of its digits is 92160, while the sum is 42.

The square root of 125484981 is about 11202.0079003721. The cubic root of 125484981 is about 500.6458068413.

The spelling of 125484981 in words is "one hundred twenty-five million, four hundred eighty-four thousand, nine hundred eighty-one".