43057001 has 4 divisors (see below), whose sum is σ = 46369092. Its totient is φ = 39744912.

The previous prime is 43056973. The next prime is 43057013. The reversal of 43057001 is 10075034.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10075034 = 2 ⋅5037517.

It can be written as a sum of positive squares in 2 ways, for example, as 22080601 + 20976400 = 4699^2 + 4580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43057001 is a prime.

It is a super-2 number, since 2×43057001² = 3707810670228002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43057031) 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, 1656026 + ... + 1656051.

It is an arithmetic number, because the mean of its divisors is an integer number (11592273).

Almost surely, 2^43057001 is an apocalyptic number.

It is an amenable number.

43057001 is a deficient number, since it is larger than the sum of its proper divisors (3312091).

43057001 is a wasteful number, since it uses less digits than its factorization.

43057001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312090.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 43057001 is about 6561.7833703956. The cubic root of 43057001 is about 350.4945417115.

The spelling of 43057001 in words is "forty-three million, fifty-seven thousand, one".