115220415 has 8 divisors (see below), whose sum is σ = 184352688. Its totient is φ = 61450880.

The previous prime is 115220401. The next prime is 115220419. The reversal of 115220415 is 514022511.

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

It is not a de Polignac number, because 115220415 - 2¹² = 115216319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115220391 and 115220400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115220419) 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, 3840666 + ... + 3840695.

It is an arithmetic number, because the mean of its divisors is an integer number (23044086).

Almost surely, 2^115220415 is an apocalyptic number.

115220415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115220415 is a deficient number, since it is larger than the sum of its proper divisors (69132273).

115220415 is an equidigital number, since it uses as much as digits as its factorization.

115220415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7681369.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 115220415 is about 10734.0772775307. The cubic root of 115220415 is about 486.6049005764.

Adding to 115220415 its reverse (514022511), we get a palindrome (629242926).

The spelling of 115220415 in words is "one hundred fifteen million, two hundred twenty thousand, four hundred fifteen".