105156143240 has 32 divisors (see below), whose sum is σ = 239933741760. Its totient is φ = 41470027200.

The previous prime is 105156143201. The next prime is 105156143251. The reversal of 105156143240 is 42341651501.

It is a super-2 number, since 2×105156143240² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105156143197 and 105156143206.

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, 18510566 + ... + 18516245.

It is an arithmetic number, because the mean of its divisors is an integer number (7497929430).

Almost surely, 2^105156143240 is an apocalyptic number.

105156143240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105156143240 is an abundant number, since it is smaller than the sum of its proper divisors (134777598520).

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

105156143240 is a wasteful number, since it uses less digits than its factorization.

105156143240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37026893 (or 37026889 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 105156143240 its reverse (42341651501), we get a palindrome (147497794741).

The spelling of 105156143240 in words is "one hundred five billion, one hundred fifty-six million, one hundred forty-three thousand, two hundred forty".