125154257 has 2 divisors, whose sum is σ = 125154258. Its totient is φ = 125154256.

The previous prime is 125154241. The next prime is 125154259. The reversal of 125154257 is 752451521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114939841 + 10214416 = 10721^2 + 3196^2 .

It is a cyclic number.

It is not a de Polignac number, because 125154257 - 2⁴ = 125154241 is a prime.

Together with 125154259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125154259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62577128 + 62577129.

It is an arithmetic number, because the mean of its divisors is an integer number (62577129).

Almost surely, 2^125154257 is an apocalyptic number.

It is an amenable number.

125154257 is a deficient number, since it is larger than the sum of its proper divisors (1).

125154257 is an equidigital number, since it uses as much as digits as its factorization.

125154257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14000, while the sum is 32.

The square root of 125154257 is about 11187.2363432619. The cubic root of 125154257 is about 500.2055914527.

The spelling of 125154257 in words is "one hundred twenty-five million, one hundred fifty-four thousand, two hundred fifty-seven".