115420215 has 16 divisors (see below), whose sum is σ = 186899328. Its totient is φ = 60815136.

The previous prime is 115420183. The next prime is 115420219. The reversal of 115420215 is 512024511.

It is not a de Polignac number, because 115420215 - 2⁵ = 115420183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115420191 and 115420200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115420219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45109 + ... + 47598.

It is an arithmetic number, because the mean of its divisors is an integer number (11681208).

Almost surely, 2^115420215 is an apocalyptic number.

115420215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115420215 is a deficient number, since it is larger than the sum of its proper divisors (71479113).

115420215 is an equidigital number, since it uses as much as digits as its factorization.

115420215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92798.

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

The square root of 115420215 is about 10743.3800547128. The cubic root of 115420215 is about 486.8860067667.

Adding to 115420215 its reverse (512024511), we get a palindrome (627444726).

The spelling of 115420215 in words is "one hundred fifteen million, four hundred twenty thousand, two hundred fifteen".