115131450 has 192 divisors, whose sum is σ = 357120000. Its totient is φ = 23950080.

The previous prime is 115131433. The next prime is 115131451. The reversal of 115131450 is 54131511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115131451) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 578451 + ... + 578649.

It is an arithmetic number, because the mean of its divisors is an integer number (1860000).

Almost surely, 2^115131450 is an apocalyptic number.

115131450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 115131450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178560000).

115131450 is an abundant number, since it is smaller than the sum of its proper divisors (241988550).

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

115131450 is a wasteful number, since it uses less digits than its factorization.

115131450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 115131450 is about 10729.9324322197. The cubic root of 115131450 is about 486.4796277770.

Adding to 115131450 its reverse (54131511), we get a palindrome (169262961).

The spelling of 115131450 in words is "one hundred fifteen million, one hundred thirty-one thousand, four hundred fifty".