139501948 has 12 divisors (see below), whose sum is σ = 252546840. Its totient is φ = 67345712.

The previous prime is 139501927. The next prime is 139501961. The reversal of 139501948 is 849105931.

It is a self number, because there is not a number n which added to its sum of digits gives 139501948.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 601186 + ... + 601417.

It is an arithmetic number, because the mean of its divisors is an integer number (21045570).

Almost surely, 2^139501948 is an apocalyptic number.

It is an amenable number.

139501948 is a deficient number, since it is larger than the sum of its proper divisors (113044892).

139501948 is a wasteful number, since it uses less digits than its factorization.

139501948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202636 (or 1202634 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 139501948 is about 11811.0942761456. The cubic root of 139501948 is about 518.6329328323.

The spelling of 139501948 in words is "one hundred thirty-nine million, five hundred one thousand, nine hundred forty-eight".