1528443149381 has 2 divisors, whose sum is σ = 1528443149382. Its totient is φ = 1528443149380.

The previous prime is 1528443149347. The next prime is 1528443149383. The reversal of 1528443149381 is 1839413448251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1400684085025 + 127759064356 = 1183505^2 + 357434^2 .

It is an emirp because it is prime and its reverse (1839413448251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1528443149381 - 2²² = 1528438955077 is a prime.

It is a super-2 number, since 2×1528443149381² (a number of 25 digits) contains 22 as substring.

Together with 1528443149383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1528443149383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 764221574690 + 764221574691.

It is an arithmetic number, because the mean of its divisors is an integer number (764221574691).

Almost surely, 2^{1528443149381} is an apocalyptic number.

It is an amenable number.

1528443149381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1528443149381 is an equidigital number, since it uses as much as digits as its factorization.

1528443149381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3317760, while the sum is 53.

The spelling of 1528443149381 in words is "one trillion, five hundred twenty-eight billion, four hundred forty-three million, one hundred forty-nine thousand, three hundred eighty-one".