132494221 has 2 divisors, whose sum is σ = 132494222. Its totient is φ = 132494220.

The previous prime is 132494213. The next prime is 132494233. The reversal of 132494221 is 122494231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74200996 + 58293225 = 8614^2 + 7635^2 .

It is a cyclic number.

It is not a de Polignac number, because 132494221 - 2³ = 132494213 is a prime.

It is equal to p_7511581 and since 132494221 and 7511581 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 132494221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132494251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66247110 + 66247111.

It is an arithmetic number, because the mean of its divisors is an integer number (66247111).

Almost surely, 2^132494221 is an apocalyptic number.

It is an amenable number.

132494221 is a deficient number, since it is larger than the sum of its proper divisors (1).

132494221 is an equidigital number, since it uses as much as digits as its factorization.

132494221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 132494221 is about 11510.6134067651. The cubic root of 132494221 is about 509.7989993518.

The spelling of 132494221 in words is "one hundred thirty-two million, four hundred ninety-four thousand, two hundred twenty-one".