129388151 has 4 divisors (see below), whose sum is σ = 129413592. Its totient is φ = 129362712.

The previous prime is 129388109. The next prime is 129388159. The reversal of 129388151 is 151883921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151883921 = 7 ⋅21697703.

It is a cyclic number.

It is not a de Polignac number, because 129388151 - 2¹⁸ = 129126007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129388159) 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, 2180 + ... + 16233.

It is an arithmetic number, because the mean of its divisors is an integer number (32353398).

Almost surely, 2^129388151 is an apocalyptic number.

129388151 is a deficient number, since it is larger than the sum of its proper divisors (25441).

129388151 is an equidigital number, since it uses as much as digits as its factorization.

129388151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25440.

The product of its digits is 17280, while the sum is 38.

The square root of 129388151 is about 11374.8912522274. The cubic root of 129388151 is about 505.7837074921.

The spelling of 129388151 in words is "one hundred twenty-nine million, three hundred eighty-eight thousand, one hundred fifty-one".