125605387 has 4 divisors (see below), whose sum is σ = 126757840. Its totient is φ = 124452936.

The previous prime is 125605357. The next prime is 125605391. The reversal of 125605387 is 783506521.

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

It is a cyclic number.

It is not a de Polignac number, because 125605387 - 2¹¹ = 125603339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125605327) 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, 576063 + ... + 576280.

It is an arithmetic number, because the mean of its divisors is an integer number (31689460).

Almost surely, 2^125605387 is an apocalyptic number.

125605387 is a deficient number, since it is larger than the sum of its proper divisors (1152453).

125605387 is a wasteful number, since it uses less digits than its factorization.

125605387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152452.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 125605387 is about 11207.3809161641. The cubic root of 125605387 is about 500.8058830738.

The spelling of 125605387 in words is "one hundred twenty-five million, six hundred five thousand, three hundred eighty-seven".