152352821 has 2 divisors, whose sum is σ = 152352822. Its totient is φ = 152352820.

The previous prime is 152352799. The next prime is 152352847. The reversal of 152352821 is 128253251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151560721 + 792100 = 12311^2 + 890^2 .

It is a cyclic number.

It is not a de Polignac number, because 152352821 - 2¹⁸ = 152090677 is a prime.

It is a super-2 number, since 2×152352821² = 46422764133316082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152352721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76176410 + 76176411.

It is an arithmetic number, because the mean of its divisors is an integer number (76176411).

Almost surely, 2^152352821 is an apocalyptic number.

It is an amenable number.

152352821 is a deficient number, since it is larger than the sum of its proper divisors (1).

152352821 is an equidigital number, since it uses as much as digits as its factorization.

152352821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 29.

The square root of 152352821 is about 12343.1284932144. The cubic root of 152352821 is about 534.0929352855.

The spelling of 152352821 in words is "one hundred fifty-two million, three hundred fifty-two thousand, eight hundred twenty-one".