139496486 has 4 divisors (see below), whose sum is σ = 209244732. Its totient is φ = 69748242.

The previous prime is 139496471. The next prime is 139496521. The reversal of 139496486 is 684694931.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34874120 + ... + 34874123.

It is an arithmetic number, because the mean of its divisors is an integer number (52311183).

Almost surely, 2^139496486 is an apocalyptic number.

139496486 is a deficient number, since it is larger than the sum of its proper divisors (69748246).

139496486 is an equidigital number, since it uses as much as digits as its factorization.

139496486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69748245.

The product of its digits is 1119744, while the sum is 50.

The square root of 139496486 is about 11810.8630505988. The cubic root of 139496486 is about 518.6261639661.

The spelling of 139496486 in words is "one hundred thirty-nine million, four hundred ninety-six thousand, four hundred eighty-six".