115329421 has 4 divisors (see below), whose sum is σ = 116093344. Its totient is φ = 114565500.

The previous prime is 115329419. The next prime is 115329437. The reversal of 115329421 is 124923511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115329421 - 2¹ = 115329419 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 115329421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115329451) 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 3 ways as a sum of consecutive naturals, for example, 381735 + ... + 382036.

It is an arithmetic number, because the mean of its divisors is an integer number (29023336).

Almost surely, 2^115329421 is an apocalyptic number.

It is an amenable number.

115329421 is a deficient number, since it is larger than the sum of its proper divisors (763923).

115329421 is an equidigital number, since it uses as much as digits as its factorization.

115329421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763922.

The product of its digits is 2160, while the sum is 28.

The square root of 115329421 is about 10739.1536444917. The cubic root of 115329421 is about 486.7583054952.

The spelling of 115329421 in words is "one hundred fifteen million, three hundred twenty-nine thousand, four hundred twenty-one".