43052137 has 2 divisors, whose sum is σ = 43052138. Its totient is φ = 43052136.

The previous prime is 43052131. The next prime is 43052147. The reversal of 43052137 is 73125034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40309801 + 2742336 = 6349^2 + 1656^2 .

It is a cyclic number.

It is not a de Polignac number, because 43052137 - 2³ = 43052129 is a prime.

It is not a weakly prime, because it can be changed into another prime (43052131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21526068 + 21526069.

It is an arithmetic number, because the mean of its divisors is an integer number (21526069).

Almost surely, 2^43052137 is an apocalyptic number.

It is an amenable number.

43052137 is a deficient number, since it is larger than the sum of its proper divisors (1).

43052137 is an equidigital number, since it uses as much as digits as its factorization.

43052137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 43052137 is about 6561.4127289784. The cubic root of 43052137 is about 350.4813431637.

The spelling of 43052137 in words is "forty-three million, fifty-two thousand, one hundred thirty-seven".