125958606929 has 4 divisors (see below), whose sum is σ = 125960676276. Its totient is φ = 125956537584.

The previous prime is 125958606911. The next prime is 125958606941. The reversal of 125958606929 is 929606859521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 929606859521 = 29 ⋅32055408949.

It can be written as a sum of positive squares in 2 ways, for example, as 101442250000 + 24516356929 = 318500^2 + 156577^2 .

It is a cyclic number.

It is not a de Polignac number, because 125958606929 - 2⁸ = 125958606673 is a prime.

It is a super-2 number, since 2×125958606929² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125958609929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940514 + ... + 1066059.

It is an arithmetic number, because the mean of its divisors is an integer number (31490169069).

Almost surely, 2^125958606929 is an apocalyptic number.

It is an amenable number.

125958606929 is a deficient number, since it is larger than the sum of its proper divisors (2069347).

125958606929 is an equidigital number, since it uses as much as digits as its factorization.

125958606929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069346.

The product of its (nonzero) digits is 20995200, while the sum is 62.

The spelling of 125958606929 in words is "one hundred twenty-five billion, nine hundred fifty-eight million, six hundred six thousand, nine hundred twenty-nine".