139016412 has 144 divisors (see below), whose sum is σ = 396264960. Its totient is φ = 42446592.

The previous prime is 139016411. The next prime is 139016413. The reversal of 139016412 is 214610931.

139016412 is a `hidden beast` number, since 13 + 9 + 0 + 1 + 641 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (139016411) and next prime (139016413).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139016411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 776539 + ... + 776717.

It is an arithmetic number, because the mean of its divisors is an integer number (2751840).

Almost surely, 2^139016412 is an apocalyptic number.

139016412 is a gapful number since it is divisible by the number (12) 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 139016412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198132480).

139016412 is an abundant number, since it is smaller than the sum of its proper divisors (257248548).

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

139016412 is a wasteful number, since it uses less digits than its factorization.

139016412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 139016412 is about 11790.5221258433. The cubic root of 139016412 is about 518.0305334238.

The spelling of 139016412 in words is "one hundred thirty-nine million, sixteen thousand, four hundred twelve".