129150029258 has 4 divisors (see below), whose sum is σ = 193725043890. Its totient is φ = 64575014628.

The previous prime is 129150029219. The next prime is 129150029291. The reversal of 129150029258 is 852920051921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 126641321689 + 2508707569 = 355867^2 + 50087^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32287507313 + ... + 32287507316.

Almost surely, 2^129150029258 is an apocalyptic number.

129150029258 is a deficient number, since it is larger than the sum of its proper divisors (64575014632).

129150029258 is an equidigital number, since it uses as much as digits as its factorization.

129150029258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64575014631.

The product of its (nonzero) digits is 129600, while the sum is 44.

The spelling of 129150029258 in words is "one hundred twenty-nine billion, one hundred fifty million, twenty-nine thousand, two hundred fifty-eight".