487375139 has 2 divisors, whose sum is σ = 487375140. Its totient is φ = 487375138.

The previous prime is 487375123. The next prime is 487375237. The reversal of 487375139 is 931573784.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 487375139 - 2⁴ = 487375123 is a prime.

It is a super-2 number, since 2×487375139² = 475069052230538642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 487375093 and 487375102.

It is not a weakly prime, because it can be changed into another prime (487371139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243687569 + 243687570.

It is an arithmetic number, because the mean of its divisors is an integer number (243687570).

Almost surely, 2^487375139 is an apocalyptic number.

487375139 is a deficient number, since it is larger than the sum of its proper divisors (1).

487375139 is an equidigital number, since it uses as much as digits as its factorization.

487375139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The square root of 487375139 is about 22076.5744398899. The cubic root of 487375139 is about 786.9632598193.

The spelling of 487375139 in words is "four hundred eighty-seven million, three hundred seventy-five thousand, one hundred thirty-nine".