1532650381 has 2 divisors, whose sum is σ = 1532650382. Its totient is φ = 1532650380.

The previous prime is 1532650331. The next prime is 1532650391. The reversal of 1532650381 is 1830562351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1275561225 + 257089156 = 35715^2 + 16034^2 .

It is a cyclic number.

It is not a de Polignac number, because 1532650381 - 2⁷ = 1532650253 is a prime.

It is a super-2 number, since 2×1532650381² = 4698034380758890322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1532650321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766325190 + 766325191.

It is an arithmetic number, because the mean of its divisors is an integer number (766325191).

Almost surely, 2^1532650381 is an apocalyptic number.

It is an amenable number.

1532650381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1532650381 is an equidigital number, since it uses as much as digits as its factorization.

1532650381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 1532650381 is about 39149.0789291396. The cubic root of 1532650381 is about 1152.9603328891.

The spelling of 1532650381 in words is "one billion, five hundred thirty-two million, six hundred fifty thousand, three hundred eighty-one".