129858641 has 16 divisors (see below), whose sum is σ = 146525568. Its totient is φ = 114048000.

The previous prime is 129858623. The next prime is 129858647. The reversal of 129858641 is 146858921.

It is not a de Polignac number, because 129858641 - 2⁶ = 129858577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129858592 and 129858601.

It is not an unprimeable number, because it can be changed into a prime (129858647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60401 + ... + 62513.

It is an arithmetic number, because the mean of its divisors is an integer number (9157848).

Almost surely, 2^129858641 is an apocalyptic number.

129858641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

129858641 is a deficient number, since it is larger than the sum of its proper divisors (16666927).

129858641 is a wasteful number, since it uses less digits than its factorization.

129858641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312.

The product of its digits is 138240, while the sum is 44.

The square root of 129858641 is about 11395.5535626840. The cubic root of 129858641 is about 506.3960209580.

The spelling of 129858641 in words is "one hundred twenty-nine million, eight hundred fifty-eight thousand, six hundred forty-one".