125281291 has 2 divisors, whose sum is σ = 125281292. Its totient is φ = 125281290.

The previous prime is 125281259. The next prime is 125281319. The reversal of 125281291 is 192182521.

It is a strong prime.

It is an emirp because it is prime and its reverse (192182521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125281291 - 2⁵ = 125281259 is a prime.

It is not a weakly prime, because it can be changed into another prime (125281201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62640645 + 62640646.

It is an arithmetic number, because the mean of its divisors is an integer number (62640646).

Almost surely, 2^125281291 is an apocalyptic number.

125281291 is a deficient number, since it is larger than the sum of its proper divisors (1).

125281291 is an equidigital number, since it uses as much as digits as its factorization.

125281291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 31.

The square root of 125281291 is about 11192.9125342781. The cubic root of 125281291 is about 500.3747736859.

The spelling of 125281291 in words is "one hundred twenty-five million, two hundred eighty-one thousand, two hundred ninety-one".