139046544 has 280 divisors, whose sum is σ = 500926272. Its totient is φ = 36391680.

The previous prime is 139046543. The next prime is 139046549. The reversal of 139046544 is 445640931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 139046499 and 139046508.

It is not an unprimeable number, because it can be changed into a prime (139046543) 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 55 ways as a sum of consecutive naturals, for example, 1061359 + ... + 1061489.

Almost surely, 2^139046544 is an apocalyptic number.

139046544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139046544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250463136).

139046544 is an abundant number, since it is smaller than the sum of its proper divisors (361879728).

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

139046544 is a wasteful number, since it uses less digits than its factorization.

139046544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 139046544 is about 11791.7998626164. The cubic root of 139046544 is about 518.0679586653.

The spelling of 139046544 in words is "one hundred thirty-nine million, forty-six thousand, five hundred forty-four".