125727073 has 4 divisors (see below), whose sum is σ = 129125140. Its totient is φ = 122329008.

The previous prime is 125727071. The next prime is 125727083. The reversal of 125727073 is 370727521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49112064 + 76615009 = 7008^2 + 8753^2 .

It is a cyclic number.

It is not a de Polignac number, because 125727073 - 2¹ = 125727071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125727071) 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, 1698978 + ... + 1699051.

It is an arithmetic number, because the mean of its divisors is an integer number (32281285).

Almost surely, 2^125727073 is an apocalyptic number.

It is an amenable number.

125727073 is a deficient number, since it is larger than the sum of its proper divisors (3398067).

125727073 is an equidigital number, since it uses as much as digits as its factorization.

125727073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398066.

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 125727073 is about 11212.8084349997. The cubic root of 125727073 is about 500.9675571254.

The spelling of 125727073 in words is "one hundred twenty-five million, seven hundred twenty-seven thousand, seventy-three".