43920101 has 2 divisors, whose sum is σ = 43920102. Its totient is φ = 43920100.

The previous prime is 43920089. The next prime is 43920113. The reversal of 43920101 is 10102934.

It is a balanced prime because it is at equal distance from previous prime (43920089) and next prime (43920113).

It can be written as a sum of positive squares in only one way, i.e., 26061025 + 17859076 = 5105^2 + 4226^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43920101 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43920601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21960050 + 21960051.

It is an arithmetic number, because the mean of its divisors is an integer number (21960051).

Almost surely, 2^43920101 is an apocalyptic number.

It is an amenable number.

43920101 is a deficient number, since it is larger than the sum of its proper divisors (1).

43920101 is an equidigital number, since it uses as much as digits as its factorization.

43920101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 43920101 is about 6627.2242303999. The cubic root of 43920101 is about 352.8210136761.

The spelling of 43920101 in words is "forty-three million, nine hundred twenty thousand, one hundred one".