149530407404221 has 2 divisors, whose sum is σ = 149530407404222. Its totient is φ = 149530407404220.

The previous prime is 149530407404171. The next prime is 149530407404227. The reversal of 149530407404221 is 122404704035941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148908596301721 + 621811102500 = 12202811^2 + 788550^2 .

It is a cyclic number.

It is not a de Polignac number, because 149530407404221 - 2¹⁹ = 149530406879933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149530407404227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74765203702110 + 74765203702111.

It is an arithmetic number, because the mean of its divisors is an integer number (74765203702111).

Almost surely, 2^{149530407404221} is an apocalyptic number.

It is an amenable number.

149530407404221 is a deficient number, since it is larger than the sum of its proper divisors (1).

149530407404221 is an equidigital number, since it uses as much as digits as its factorization.

149530407404221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 149530407404221 in words is "one hundred forty-nine trillion, five hundred thirty billion, four hundred seven million, four hundred four thousand, two hundred twenty-one".