1487616139 has 2 divisors, whose sum is σ = 1487616140. Its totient is φ = 1487616138.

The previous prime is 1487616107. The next prime is 1487616157. The reversal of 1487616139 is 9316167841.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1487616139 - 2⁵ = 1487616107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1487616239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743808069 + 743808070.

It is an arithmetic number, because the mean of its divisors is an integer number (743808070).

Almost surely, 2^1487616139 is an apocalyptic number.

1487616139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487616139 is an equidigital number, since it uses as much as digits as its factorization.

1487616139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 46.

The square root of 1487616139 is about 38569.6271566112. The cubic root of 1487616139 is about 1141.5553150306. Note that the first 3 decimals are identical.

The spelling of 1487616139 in words is "one billion, four hundred eighty-seven million, six hundred sixteen thousand, one hundred thirty-nine".