139990047 has 16 divisors (see below), whose sum is σ = 193399680. Its totient is φ = 89964000.

The previous prime is 139990027. The next prime is 139990049. The reversal of 139990047 is 740099931.

It is not a de Polignac number, because 139990047 - 2¹⁴ = 139973663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139989990 and 139990008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139990049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90672 + ... + 92202.

It is an arithmetic number, because the mean of its divisors is an integer number (12087480).

Almost surely, 2^139990047 is an apocalyptic number.

139990047 is a deficient number, since it is larger than the sum of its proper divisors (53409633).

139990047 is a wasteful number, since it uses less digits than its factorization.

139990047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 139990047 is about 11831.7389677088. The cubic root of 139990047 is about 519.2371049188.

The spelling of 139990047 in words is "one hundred thirty-nine million, nine hundred ninety thousand, forty-seven".