125270891 has 2 divisors, whose sum is σ = 125270892. Its totient is φ = 125270890.

The previous prime is 125270861. The next prime is 125270917. The reversal of 125270891 is 198072521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125270891 - 2¹⁸ = 125008747 is a prime.

It is a super-2 number, since 2×125270891² = 31385592263867762, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125270801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62635445 + 62635446.

It is an arithmetic number, because the mean of its divisors is an integer number (62635446).

Almost surely, 2^125270891 is an apocalyptic number.

125270891 is a deficient number, since it is larger than the sum of its proper divisors (1).

125270891 is an equidigital number, since it uses as much as digits as its factorization.

125270891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 125270891 is about 11192.4479449314. The cubic root of 125270891 is about 500.3609274001.

The spelling of 125270891 in words is "one hundred twenty-five million, two hundred seventy thousand, eight hundred ninety-one".