43051049 has 4 divisors (see below), whose sum is σ = 43067220. Its totient is φ = 43034880.

The previous prime is 43051037. The next prime is 43051067. The reversal of 43051049 is 94015034.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23088025 + 19963024 = 4805^2 + 4468^2 .

It is a cyclic number.

It is not a de Polignac number, because 43051049 - 2¹² = 43046953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43051069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3044 + ... + 9765.

It is an arithmetic number, because the mean of its divisors is an integer number (10766805).

Almost surely, 2^43051049 is an apocalyptic number.

It is an amenable number.

43051049 is a deficient number, since it is larger than the sum of its proper divisors (16171).

43051049 is a wasteful number, since it uses less digits than its factorization.

43051049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16170.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 43051049 is about 6561.3298194802. The cubic root of 43051049 is about 350.4783907210.

The spelling of 43051049 in words is "forty-three million, fifty-one thousand, forty-nine".