105140233450 has 36 divisors (see below), whose sum is σ = 227489138982. Its totient is φ = 36048079200.

The previous prime is 105140233409. The next prime is 105140233529. The reversal of 105140233450 is 54332041501.

It can be written as a sum of positive squares in 3 ways, for example, as 102519714969 + 2620518481 = 320187^2 + 51191^2 .

It is a super-2 number, since 2×105140233450² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21454741 + ... + 21459640.

Almost surely, 2^105140233450 is an apocalyptic number.

105140233450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105140233450 is an abundant number, since it is smaller than the sum of its proper divisors (122348905532).

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

105140233450 is a wasteful number, since it uses less digits than its factorization.

105140233450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42914407 (or 42914395 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 105140233450 its reverse (54332041501), we get a palindrome (159472274951).

The spelling of 105140233450 in words is "one hundred five billion, one hundred forty million, two hundred thirty-three thousand, four hundred fifty".