139129948 has 6 divisors (see below), whose sum is σ = 243477416. Its totient is φ = 69564972.

The previous prime is 139129943. The next prime is 139129957. The reversal of 139129948 is 849921931.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 139129898 and 139129907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139129943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17391240 + ... + 17391247.

Almost surely, 2^139129948 is an apocalyptic number.

It is an amenable number.

139129948 is a deficient number, since it is larger than the sum of its proper divisors (104347468).

139129948 is a wasteful number, since it uses less digits than its factorization.

139129948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34782491 (or 34782489 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 139129948 is about 11795.3358578720. The cubic root of 139129948 is about 518.1715218376.

The spelling of 139129948 in words is "one hundred thirty-nine million, one hundred twenty-nine thousand, nine hundred forty-eight".