152633521 has 2 divisors, whose sum is σ = 152633522. Its totient is φ = 152633520.

The previous prime is 152633519. The next prime is 152633549. The reversal of 152633521 is 125336251.

It is an a-pointer prime, because the next prime (152633549) can be obtained adding 152633521 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120143521 + 32490000 = 10961^2 + 5700^2 .

It is a cyclic number.

It is not a de Polignac number, because 152633521 - 2¹ = 152633519 is a prime.

Together with 152633519, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 152633521.

It is not a weakly prime, because it can be changed into another prime (152643521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76316760 + 76316761.

It is an arithmetic number, because the mean of its divisors is an integer number (76316761).

Almost surely, 2^152633521 is an apocalyptic number.

It is an amenable number.

152633521 is a deficient number, since it is larger than the sum of its proper divisors (1).

152633521 is an equidigital number, since it uses as much as digits as its factorization.

152633521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 28.

The square root of 152633521 is about 12354.4939596893. The cubic root of 152633521 is about 534.4207443530.

Adding to 152633521 its reverse (125336251), we get a palindrome (277969772).

The spelling of 152633521 in words is "one hundred fifty-two million, six hundred thirty-three thousand, five hundred twenty-one".