139477044 has 48 divisors (see below), whose sum is σ = 393821568. Its totient is φ = 37506048.

The previous prime is 139477033. The next prime is 139477069. The reversal of 139477044 is 440774931.

It is a junction number, because it is equal to n+sod(n) for n = 139476993 and 139477011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47409 + ... + 50264.

It is an arithmetic number, because the mean of its divisors is an integer number (8204616).

Almost surely, 2^139477044 is an apocalyptic number.

139477044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

139477044 is an abundant number, since it is smaller than the sum of its proper divisors (254344524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139477044 is a wasteful number, since it uses less digits than its factorization.

139477044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97704 (or 97702 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 139477044 is about 11810.0399660628. The cubic root of 139477044 is about 518.6020687394.

The spelling of 139477044 in words is "one hundred thirty-nine million, four hundred seventy-seven thousand, forty-four".