115213450 has 48 divisors (see below), whose sum is σ = 238806144. Its totient is φ = 40995200.

The previous prime is 115213447. The next prime is 115213451. The reversal of 115213450 is 54312511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (115213451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23622 + ... + 28078.

It is an arithmetic number, because the mean of its divisors is an integer number (4975128).

Almost surely, 2^115213450 is an apocalyptic number.

115213450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115213450 is an abundant number, since it is smaller than the sum of its proper divisors (123592694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115213450 is a wasteful number, since it uses less digits than its factorization.

115213450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4527 (or 4522 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 115213450 is about 10733.7528385928. The cubic root of 115213450 is about 486.5950953943.

Adding to 115213450 its reverse (54312511), we get a palindrome (169525961).

The spelling of 115213450 in words is "one hundred fifteen million, two hundred thirteen thousand, four hundred fifty".