139169492128144 has 45 divisors (see below), whose sum is σ = 276381745357699. Its totient is φ = 67886613374720.

The previous prime is 139169492128097. The next prime is 139169492128189. The reversal of 139169492128144 is 441821294961931.

The square root of 139169492128144 is 11797012.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 126981796704400 + 12187695423744 = 11268620^2 + 3491088^2 .

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1934674002 + ... + 1934745934.

Almost surely, 2^{139169492128144} is an apocalyptic number.

139169492128144 is the 11797012-nd square number.

It is an amenable number.

139169492128144 is a deficient number, since it is larger than the sum of its proper divisors (137212253229555).

139169492128144 is an frugal number, since it uses more digits than its factorization.

139169492128144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143956 (or 71976 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 64.

The spelling of 139169492128144 in words is "one hundred thirty-nine trillion, one hundred sixty-nine billion, four hundred ninety-two million, one hundred twenty-eight thousand, one hundred forty-four".