125887693 has 2 divisors, whose sum is σ = 125887694. Its totient is φ = 125887692.

The previous prime is 125887687. The next prime is 125887709. The reversal of 125887693 is 396788521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121815369 + 4072324 = 11037^2 + 2018^2 .

It is an emirp because it is prime and its reverse (396788521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125887693 is a prime.

It is a super-2 number, since 2×125887693² = 31695422497724498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125887613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62943846 + 62943847.

It is an arithmetic number, because the mean of its divisors is an integer number (62943847).

Almost surely, 2^125887693 is an apocalyptic number.

It is an amenable number.

125887693 is a deficient number, since it is larger than the sum of its proper divisors (1).

125887693 is an equidigital number, since it uses as much as digits as its factorization.

125887693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 49.

The square root of 125887693 is about 11219.9684937169. The cubic root of 125887693 is about 501.1807998947.

The spelling of 125887693 in words is "one hundred twenty-five million, eight hundred eighty-seven thousand, six hundred ninety-three".