139980047 has 6 divisors (see below), whose sum is σ = 146125368. Its totient is φ = 133839684.

The previous prime is 139980017. The next prime is 139980067. The reversal of 139980047 is 740089931.

It is a happy number.

It is not a de Polignac number, because 139980047 - 2¹² = 139975951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139979986 and 139980013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139980017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55508 + ... + 57974.

It is an arithmetic number, because the mean of its divisors is an integer number (24354228).

Almost surely, 2^139980047 is an apocalyptic number.

139980047 is a deficient number, since it is larger than the sum of its proper divisors (6145321).

139980047 is an frugal number, since it uses more digits than its factorization.

139980047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4957 (or 2490 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 139980047 is about 11831.3163680125. The cubic root of 139980047 is about 519.2247409572.

The spelling of 139980047 in words is "one hundred thirty-nine million, nine hundred eighty thousand, forty-seven".