125282881 has 2 divisors, whose sum is σ = 125282882. Its totient is φ = 125282880.

The previous prime is 125282879. The next prime is 125282933. The reversal of 125282881 is 188282521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104040000 + 21242881 = 10200^2 + 4609^2 .

It is a cyclic number.

It is not a de Polignac number, because 125282881 - 2¹ = 125282879 is a prime.

It is a super-2 number, since 2×125282881² = 31391600543320322, which contains 22 as substring.

Together with 125282879, 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 125282881.

It is not a weakly prime, because it can be changed into another prime (125282281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62641440 + 62641441.

It is an arithmetic number, because the mean of its divisors is an integer number (62641441).

Almost surely, 2^125282881 is an apocalyptic number.

It is an amenable number.

125282881 is a deficient number, since it is larger than the sum of its proper divisors (1).

125282881 is an equidigital number, since it uses as much as digits as its factorization.

125282881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20480, while the sum is 37.

The square root of 125282881 is about 11192.9835611422. The cubic root of 125282881 is about 500.3768905024.

The spelling of 125282881 in words is "one hundred twenty-five million, two hundred eighty-two thousand, eight hundred eighty-one".