125043137 has 2 divisors, whose sum is σ = 125043138. Its totient is φ = 125043136.

The previous prime is 125043103. The next prime is 125043167. The reversal of 125043137 is 731340521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78925456 + 46117681 = 8884^2 + 6791^2 .

It is a cyclic number.

It is not a de Polignac number, because 125043137 - 2⁶ = 125043073 is a prime.

It is a super-2 number, since 2×125043137² = 31271572221601538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125043167) 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, 62521568 + 62521569.

It is an arithmetic number, because the mean of its divisors is an integer number (62521569).

Almost surely, 2^125043137 is an apocalyptic number.

It is an amenable number.

125043137 is a deficient number, since it is larger than the sum of its proper divisors (1).

125043137 is an equidigital number, since it uses as much as digits as its factorization.

125043137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 125043137 is about 11182.2688663795. The cubic root of 125043137 is about 500.0575093851.

Adding to 125043137 its reverse (731340521), we get a palindrome (856383658).

The spelling of 125043137 in words is "one hundred twenty-five million, forty-three thousand, one hundred thirty-seven".