139414506 has 72 divisors (see below), whose sum is σ = 356610240. Its totient is φ = 36202320.

The previous prime is 139414481. The next prime is 139414531. The reversal of 139414506 is 605414931.

It is an interprime number because it is at equal distance from previous prime (139414481) and next prime (139414531).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33615 + ... + 37533.

It is an arithmetic number, because the mean of its divisors is an integer number (4952920).

Almost surely, 2^139414506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139414506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178305120).

139414506 is an abundant number, since it is smaller than the sum of its proper divisors (217195734).

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

139414506 is a wasteful number, since it uses less digits than its factorization.

139414506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960 (or 3942 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 139414506 is about 11807.3920067050. The cubic root of 139414506 is about 518.5245477756.

The spelling of 139414506 in words is "one hundred thirty-nine million, four hundred fourteen thousand, five hundred six".