43141515345 has 24 divisors (see below), whose sum is σ = 74852817000. Its totient is φ = 22985980416.

The previous prime is 43141515343. The next prime is 43141515379. The reversal of 43141515345 is 54351514134.

43141515345 is a `hidden beast` number, since 4 + 31 + 41 + 51 + 534 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1315948176 + 41825567169 = 36276^2 + 204513^2 .

It is not a de Polignac number, because 43141515345 - 2¹ = 43141515343 is a prime.

It is a super-2 number, since 2×43141515345² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43141515341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 429670 + ... + 520479.

It is an arithmetic number, because the mean of its divisors is an integer number (3118867375).

Almost surely, 2^43141515345 is an apocalyptic number.

43141515345 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43141515345 is a deficient number, since it is larger than the sum of its proper divisors (31711301655).

43141515345 is a wasteful number, since it uses less digits than its factorization.

43141515345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951169 (or 951166 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The spelling of 43141515345 in words is "forty-three billion, one hundred forty-one million, five hundred fifteen thousand, three hundred forty-five".