152135520221 has 2 divisors, whose sum is σ = 152135520222. Its totient is φ = 152135520220.

The previous prime is 152135520161. The next prime is 152135520227. The reversal of 152135520221 is 122025531251.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117982632196 + 34152888025 = 343486^2 + 184805^2 .

It is a cyclic number.

It is not a de Polignac number, because 152135520221 - 2²² = 152131325917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152135520227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76067760110 + 76067760111.

It is an arithmetic number, because the mean of its divisors is an integer number (76067760111).

Almost surely, 2^152135520221 is an apocalyptic number.

It is an amenable number.

152135520221 is a deficient number, since it is larger than the sum of its proper divisors (1).

152135520221 is an equidigital number, since it uses as much as digits as its factorization.

152135520221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 152135520221 in words is "one hundred fifty-two billion, one hundred thirty-five million, five hundred twenty thousand, two hundred twenty-one".