190632521 has 2 divisors, whose sum is σ = 190632522. Its totient is φ = 190632520.

The previous prime is 190632437. The next prime is 190632527. The reversal of 190632521 is 125236091.

190632521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109830400 + 80802121 = 10480^2 + 8989^2 .

It is an emirp because it is prime and its reverse (125236091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190632521 - 2¹⁴ = 190616137 is a prime.

It is not a weakly prime, because it can be changed into another prime (190632527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95316260 + 95316261.

It is an arithmetic number, because the mean of its divisors is an integer number (95316261).

Almost surely, 2^190632521 is an apocalyptic number.

It is an amenable number.

190632521 is a deficient number, since it is larger than the sum of its proper divisors (1).

190632521 is an equidigital number, since it uses as much as digits as its factorization.

190632521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 190632521 is about 13806.9736365360. The cubic root of 190632521 is about 575.5269483202.

The spelling of 190632521 in words is "one hundred ninety million, six hundred thirty-two thousand, five hundred twenty-one".