125992445 has 4 divisors (see below), whose sum is σ = 151190940. Its totient is φ = 100793952.

The previous prime is 125992429. The next prime is 125992453. The reversal of 125992445 is 544299521.

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 64432729 + 61559716 = 8027^2 + 7846^2 .

It is a cyclic number.

It is not a de Polignac number, because 125992445 - 2⁴ = 125992429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12599240 + ... + 12599249.

It is an arithmetic number, because the mean of its divisors is an integer number (37797735).

Almost surely, 2^125992445 is an apocalyptic number.

It is an amenable number.

125992445 is a deficient number, since it is larger than the sum of its proper divisors (25198495).

125992445 is an equidigital number, since it uses as much as digits as its factorization.

125992445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25198494.

The product of its digits is 129600, while the sum is 41.

The square root of 125992445 is about 11224.6356288300. The cubic root of 125992445 is about 501.3197733317.

The spelling of 125992445 in words is "one hundred twenty-five million, nine hundred ninety-two thousand, four hundred forty-five".