115821429 has 8 divisors (see below), whose sum is σ = 154975392. Its totient is φ = 76940880.

The previous prime is 115821427. The next prime is 115821439. The reversal of 115821429 is 924128511.

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

It is not a de Polignac number, because 115821429 - 2¹ = 115821427 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 115821429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115821427) 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 7 ways as a sum of consecutive naturals, for example, 67362 + ... + 69059.

It is an arithmetic number, because the mean of its divisors is an integer number (19371924).

Almost surely, 2^115821429 is an apocalyptic number.

It is an amenable number.

115821429 is a deficient number, since it is larger than the sum of its proper divisors (39153963).

115821429 is a wasteful number, since it uses less digits than its factorization.

115821429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136707.

The product of its digits is 5760, while the sum is 33.

The square root of 115821429 is about 10762.0364708544. The cubic root of 115821429 is about 487.4495116681.

The spelling of 115821429 in words is "one hundred fifteen million, eight hundred twenty-one thousand, four hundred twenty-nine".