1539663413 has 4 divisors (see below), whose sum is σ = 1546960608. Its totient is φ = 1532366220.

The previous prime is 1539663371. The next prime is 1539663427. The reversal of 1539663413 is 3143669351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1539663413 - 2¹⁴ = 1539647029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1539663473) 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 in 3 ways as a sum of consecutive naturals, for example, 3648281 + ... + 3648702.

It is an arithmetic number, because the mean of its divisors is an integer number (386740152).

Almost surely, 2^1539663413 is an apocalyptic number.

It is an amenable number.

1539663413 is a deficient number, since it is larger than the sum of its proper divisors (7297195).

1539663413 is an equidigital number, since it uses as much as digits as its factorization.

1539663413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7297194.

The product of its digits is 174960, while the sum is 41.

The square root of 1539663413 is about 39238.5449908633. The cubic root of 1539663413 is about 1154.7162119568.

The spelling of 1539663413 in words is "one billion, five hundred thirty-nine million, six hundred sixty-three thousand, four hundred thirteen".