129901540294 has 4 divisors (see below), whose sum is σ = 194852310444. Its totient is φ = 64950770146.

The previous prime is 129901540261. The next prime is 129901540337. The reversal of 129901540294 is 492045109921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 492045109921 = 32537 ⋅15122633.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32475385072 + ... + 32475385075.

It is an arithmetic number, because the mean of its divisors is an integer number (48713077611).

Almost surely, 2^129901540294 is an apocalyptic number.

129901540294 is a deficient number, since it is larger than the sum of its proper divisors (64950770150).

129901540294 is an equidigital number, since it uses as much as digits as its factorization.

129901540294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64950770149.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 129901540294 in words is "one hundred twenty-nine billion, nine hundred one million, five hundred forty thousand, two hundred ninety-four".