139486519 has 2 divisors, whose sum is σ = 139486520. Its totient is φ = 139486518.

The previous prime is 139486507. The next prime is 139486597. The reversal of 139486519 is 915684931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139486519 - 2¹⁹ = 138962231 is a prime.

It is a super-2 number, since 2×139486519² = 38912977965474722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139481519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69743259 + 69743260.

It is an arithmetic number, because the mean of its divisors is an integer number (69743260).

Almost surely, 2^139486519 is an apocalyptic number.

139486519 is a deficient number, since it is larger than the sum of its proper divisors (1).

139486519 is an equidigital number, since it uses as much as digits as its factorization.

139486519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 46.

The square root of 139486519 is about 11810.4411009920. The cubic root of 139486519 is about 518.6138117551.

The spelling of 139486519 in words is "one hundred thirty-nine million, four hundred eighty-six thousand, five hundred nineteen".