125465777 has 2 divisors, whose sum is σ = 125465778. Its totient is φ = 125465776.

The previous prime is 125465723. The next prime is 125465783. The reversal of 125465777 is 777564521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96746896 + 28718881 = 9836^2 + 5359^2 .

It is a cyclic number.

It is not a de Polignac number, because 125465777 - 2⁸ = 125465521 is a prime.

It is a super-2 number, since 2×125465777² = 31483322396427458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125465707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62732888 + 62732889.

It is an arithmetic number, because the mean of its divisors is an integer number (62732889).

Almost surely, 2^125465777 is an apocalyptic number.

It is an amenable number.

125465777 is a deficient number, since it is larger than the sum of its proper divisors (1).

125465777 is an equidigital number, since it uses as much as digits as its factorization.

125465777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 411600, while the sum is 44.

The square root of 125465777 is about 11201.1506998165. The cubic root of 125465777 is about 500.6202662214.

The spelling of 125465777 in words is "one hundred twenty-five million, four hundred sixty-five thousand, seven hundred seventy-seven".