43402135032541 has 2 divisors, whose sum is σ = 43402135032542. Its totient is φ = 43402135032540.

The previous prime is 43402135032491. The next prime is 43402135032547. The reversal of 43402135032541 is 14523053120434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42242798306916 + 1159336725625 = 6499446^2 + 1076725^2 .

It is a cyclic number.

It is not a de Polignac number, because 43402135032541 - 2¹¹ = 43402135030493 is a prime.

It is a super-2 number, since 2×43402135032541² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43402135032541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43402135032547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21701067516270 + 21701067516271.

It is an arithmetic number, because the mean of its divisors is an integer number (21701067516271).

Almost surely, 2^{43402135032541} is an apocalyptic number.

It is an amenable number.

43402135032541 is a deficient number, since it is larger than the sum of its proper divisors (1).

43402135032541 is an equidigital number, since it uses as much as digits as its factorization.

43402135032541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 43402135032541 its reverse (14523053120434), we get a palindrome (57925188152975).

The spelling of 43402135032541 in words is "forty-three trillion, four hundred two billion, one hundred thirty-five million, thirty-two thousand, five hundred forty-one".