1534490387 has 2 divisors, whose sum is σ = 1534490388. Its totient is φ = 1534490386.

The previous prime is 1534490383. The next prime is 1534490417. The reversal of 1534490387 is 7830944351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1534490387 - 2² = 1534490383 is a prime.

It is not a weakly prime, because it can be changed into another prime (1534490383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 767245193 + 767245194.

It is an arithmetic number, because the mean of its divisors is an integer number (767245194).

Almost surely, 2^1534490387 is an apocalyptic number.

1534490387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1534490387 is an equidigital number, since it uses as much as digits as its factorization.

1534490387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 1534490387 is about 39172.5718711447. The cubic root of 1534490387 is about 1153.4215395152.

The spelling of 1534490387 in words is "one billion, five hundred thirty-four million, four hundred ninety thousand, three hundred eighty-seven".