129862441 has 8 divisors (see below), whose sum is σ = 134183168. Its totient is φ = 125550000.

The previous prime is 129862433. The next prime is 129862463. The reversal of 129862441 is 144268921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129862441 - 2³ = 129862433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129862441.

It is not an unprimeable number, because it can be changed into a prime (129862741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56566 + ... + 58816.

It is an arithmetic number, because the mean of its divisors is an integer number (16772896).

Almost surely, 2^129862441 is an apocalyptic number.

It is an amenable number.

129862441 is a deficient number, since it is larger than the sum of its proper divisors (4320727).

129862441 is a wasteful number, since it uses less digits than its factorization.

129862441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143.

The product of its digits is 27648, while the sum is 37.

The square root of 129862441 is about 11395.7202931627. The cubic root of 129862441 is about 506.4009603960.

The spelling of 129862441 in words is "one hundred twenty-nine million, eight hundred sixty-two thousand, four hundred forty-one".