125849833 has 2 divisors, whose sum is σ = 125849834. Its totient is φ = 125849832.

The previous prime is 125849831. The next prime is 125849851. The reversal of 125849833 is 338948521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73822464 + 52027369 = 8592^2 + 7213^2 .

It is an emirp because it is prime and its reverse (338948521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125849833 - 2¹ = 125849831 is a prime.

It is a super-2 number, since 2×125849833² = 31676360932255778, which contains 22 as substring.

Together with 125849831, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 125849833.

It is not a weakly prime, because it can be changed into another prime (125849831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62924916 + 62924917.

It is an arithmetic number, because the mean of its divisors is an integer number (62924917).

Almost surely, 2^125849833 is an apocalyptic number.

It is an amenable number.

125849833 is a deficient number, since it is larger than the sum of its proper divisors (1).

125849833 is an equidigital number, since it uses as much as digits as its factorization.

125849833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 125849833 is about 11218.2811963331. The cubic root of 125849833 is about 501.1305524423.

The spelling of 125849833 in words is "one hundred twenty-five million, eight hundred forty-nine thousand, eight hundred thirty-three".