152121533 has 2 divisors, whose sum is σ = 152121534. Its totient is φ = 152121532.

The previous prime is 152121527. The next prime is 152121569. The reversal of 152121533 is 335121251.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117570649 + 34550884 = 10843^2 + 5878^2 .

It is a cyclic number.

It is not a de Polignac number, because 152121533 - 2²² = 147927229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 152121499 and 152121508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152121503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76060766 + 76060767.

It is an arithmetic number, because the mean of its divisors is an integer number (76060767).

Almost surely, 2^152121533 is an apocalyptic number.

It is an amenable number.

152121533 is a deficient number, since it is larger than the sum of its proper divisors (1).

152121533 is an equidigital number, since it uses as much as digits as its factorization.

152121533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 23.

The square root of 152121533 is about 12333.7558351055. The cubic root of 152121533 is about 533.8225281935.

Adding to 152121533 its reverse (335121251), we get a palindrome (487242784).

The spelling of 152121533 in words is "one hundred fifty-two million, one hundred twenty-one thousand, five hundred thirty-three".