125577671 has 2 divisors, whose sum is σ = 125577672. Its totient is φ = 125577670.

The previous prime is 125577649. The next prime is 125577679. The reversal of 125577671 is 176775521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125577671 - 2⁶ = 125577607 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125577679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62788835 + 62788836.

It is an arithmetic number, because the mean of its divisors is an integer number (62788836).

Almost surely, 2^125577671 is an apocalyptic number.

125577671 is a deficient number, since it is larger than the sum of its proper divisors (1).

125577671 is an equidigital number, since it uses as much as digits as its factorization.

125577671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102900, while the sum is 41.

The square root of 125577671 is about 11206.1443413870. The cubic root of 125577671 is about 500.7690445346.

The spelling of 125577671 in words is "one hundred twenty-five million, five hundred seventy-seven thousand, six hundred seventy-one".