125141249 has 2 divisors, whose sum is σ = 125141250. Its totient is φ = 125141248.

The previous prime is 125141207. The next prime is 125141251. The reversal of 125141249 is 942141521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122500624 + 2640625 = 11068^2 + 1625^2 .

It is an emirp because it is prime and its reverse (942141521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125141249 is a prime.

Together with 125141251, 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 (125141299) 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, 62570624 + 62570625.

It is an arithmetic number, because the mean of its divisors is an integer number (62570625).

Almost surely, 2^125141249 is an apocalyptic number.

It is an amenable number.

125141249 is a deficient number, since it is larger than the sum of its proper divisors (1).

125141249 is an equidigital number, since it uses as much as digits as its factorization.

125141249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 125141249 is about 11186.6549513248. The cubic root of 125141249 is about 500.1882611066.

The spelling of 125141249 in words is "one hundred twenty-five million, one hundred forty-one thousand, two hundred forty-nine".