940521343 has 2 divisors, whose sum is σ = 940521344. Its totient is φ = 940521342.

The previous prime is 940521293. The next prime is 940521367. The reversal of 940521343 is 343125049.

It is a strong prime.

It is an emirp because it is prime and its reverse (343125049) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 940521343 - 2¹⁷ = 940390271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (940521383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470260671 + 470260672.

It is an arithmetic number, because the mean of its divisors is an integer number (470260672).

Almost surely, 2^940521343 is an apocalyptic number.

940521343 is a deficient number, since it is larger than the sum of its proper divisors (1).

940521343 is an equidigital number, since it uses as much as digits as its factorization.

940521343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 940521343 is about 30667.9204218349. The cubic root of 940521343 is about 979.7671746641.

The spelling of 940521343 in words is "nine hundred forty million, five hundred twenty-one thousand, three hundred forty-three".