1539386131 has 2 divisors, whose sum is σ = 1539386132. Its totient is φ = 1539386130.

The previous prime is 1539386119. The next prime is 1539386153. The reversal of 1539386131 is 1316839351.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1316839351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1539386131 - 2⁹ = 1539385619 is a prime.

It is a super-2 number, since 2×1539386131² = 4739419320630298322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1539386531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769693065 + 769693066.

It is an arithmetic number, because the mean of its divisors is an integer number (769693066).

Almost surely, 2^1539386131 is an apocalyptic number.

1539386131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1539386131 is an equidigital number, since it uses as much as digits as its factorization.

1539386131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The square root of 1539386131 is about 39235.0115458120. The cubic root of 1539386131 is about 1154.6468891769.

The spelling of 1539386131 in words is "one billion, five hundred thirty-nine million, three hundred eighty-six thousand, one hundred thirty-one".