215050233140 has 24 divisors (see below), whose sum is σ = 452816243880. Its totient is φ = 85789473408.

The previous prime is 215050233127. The next prime is 215050233169. The reversal of 215050233140 is 41332050512.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21962054416 + 193088178724 = 148196^2 + 439418^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14406095 + ... + 14421014.

It is an arithmetic number, because the mean of its divisors is an integer number (18867343495).

Almost surely, 2^215050233140 is an apocalyptic number.

215050233140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215050233140 is an abundant number, since it is smaller than the sum of its proper divisors (237766010740).

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

215050233140 is a wasteful number, since it uses less digits than its factorization.

215050233140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28827491 (or 28827489 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 215050233140 its reverse (41332050512), we get a palindrome (256382283652).

The spelling of 215050233140 in words is "two hundred fifteen billion, fifty million, two hundred thirty-three thousand, one hundred forty".