139773312 has 96 divisors (see below), whose sum is σ = 459697680. Its totient is φ = 39932928.

The previous prime is 139773311. The next prime is 139773313. The reversal of 139773312 is 213377931.

It is an interprime number because it is at equal distance from previous prime (139773311) and next prime (139773313).

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139773311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 603 + ... + 16730.

Almost surely, 2^139773312 is an apocalyptic number.

139773312 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 139773312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229848840).

139773312 is an abundant number, since it is smaller than the sum of its proper divisors (319924368).

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

139773312 is a wasteful number, since it uses less digits than its factorization.

139773312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17360 (or 17345 counting only the distinct ones).

The product of its digits is 23814, while the sum is 36.

The square root of 139773312 is about 11822.5763689646. The cubic root of 139773312 is about 518.9690025703.

The spelling of 139773312 in words is "one hundred thirty-nine million, seven hundred seventy-three thousand, three hundred twelve".