115212040450 has 144 divisors (see below), whose sum is σ = 256386197376. Its totient is φ = 38295628800.

The previous prime is 115212040369. The next prime is 115212040487. The reversal of 115212040450 is 54040212511.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3286515 + ... + 3321385.

It is an arithmetic number, because the mean of its divisors is an integer number (1780459704).

Almost surely, 2^115212040450 is an apocalyptic number.

115212040450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115212040450 is an abundant number, since it is smaller than the sum of its proper divisors (141174156926).

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

115212040450 is a wasteful number, since it uses less digits than its factorization.

115212040450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34949 (or 34931 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 115212040450 its reverse (54040212511), we get a palindrome (169252252961).

The spelling of 115212040450 in words is "one hundred fifteen billion, two hundred twelve million, forty thousand, four hundred fifty".