754536221 has 2 divisors, whose sum is σ = 754536222. Its totient is φ = 754536220.

The previous prime is 754536199. The next prime is 754536253. The reversal of 754536221 is 122635457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 748843225 + 5692996 = 27365^2 + 2386^2 .

It is a cyclic number.

It is not a de Polignac number, because 754536221 - 2⁶ = 754536157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (754536271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377268110 + 377268111.

It is an arithmetic number, because the mean of its divisors is an integer number (377268111).

Almost surely, 2^754536221 is an apocalyptic number.

It is an amenable number.

754536221 is a deficient number, since it is larger than the sum of its proper divisors (1).

754536221 is an equidigital number, since it uses as much as digits as its factorization.

754536221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 35.

The square root of 754536221 is about 27468.8227086637. The cubic root of 754536221 is about 910.3883625922.

The spelling of 754536221 in words is "seven hundred fifty-four million, five hundred thirty-six thousand, two hundred twenty-one".