125623133 has 2 divisors, whose sum is σ = 125623134. Its totient is φ = 125623132.

The previous prime is 125623087. The next prime is 125623159. The reversal of 125623133 is 331326521.

It is an a-pointer prime, because the next prime (125623159) can be obtained adding 125623133 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115498009 + 10125124 = 10747^2 + 3182^2 .

It is a cyclic number.

It is not a de Polignac number, because 125623133 - 2²⁰ = 124574557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125626133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62811566 + 62811567.

It is an arithmetic number, because the mean of its divisors is an integer number (62811567).

Almost surely, 2^125623133 is an apocalyptic number.

It is an amenable number.

125623133 is a deficient number, since it is larger than the sum of its proper divisors (1).

125623133 is an equidigital number, since it uses as much as digits as its factorization.

125623133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 26.

The square root of 125623133 is about 11208.1725985996. The cubic root of 125623133 is about 500.8294672074.

Adding to 125623133 its reverse (331326521), we get a palindrome (456949654).

It can be divided in two parts, 1256 and 23133, that added together give a cube (24389 = 29³).

The spelling of 125623133 in words is "one hundred twenty-five million, six hundred twenty-three thousand, one hundred thirty-three".