543640037 has 2 divisors, whose sum is σ = 543640038. Its totient is φ = 543640036.

The previous prime is 543639973. The next prime is 543640039. The reversal of 543640037 is 730046345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 456292321 + 87347716 = 21361^2 + 9346^2 .

It is a cyclic number.

It is not a de Polignac number, because 543640037 - 2⁶ = 543639973 is a prime.

It is a super-2 number, since 2×543640037² = 591088979658722738, which contains 22 as substring.

Together with 543640039, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 543639985 and 543640012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (543640039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271820018 + 271820019.

It is an arithmetic number, because the mean of its divisors is an integer number (271820019).

Almost surely, 2^543640037 is an apocalyptic number.

It is an amenable number.

543640037 is a deficient number, since it is larger than the sum of its proper divisors (1).

543640037 is an equidigital number, since it uses as much as digits as its factorization.

543640037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 543640037 is about 23316.0896592889. The cubic root of 543640037 is about 816.1509261433.

The spelling of 543640037 in words is "five hundred forty-three million, six hundred forty thousand, thirty-seven".