139354272 has 36 divisors (see below), whose sum is σ = 396289530. Its totient is φ = 46451328.

The previous prime is 139354213. The next prime is 139354273. The reversal of 139354272 is 272453931.

139354272 is a `hidden beast` number, since 1 + 39 + 354 + 272 = 666.

It can be written as a sum of positive squares in only one way, i.e., 105760656 + 33593616 = 10284^2 + 5796^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×139354272² = 38839226249299968, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (139354273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 241647 + ... + 242222.

Almost surely, 2^139354272 is an apocalyptic number.

139354272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139354272 is an abundant number, since it is smaller than the sum of its proper divisors (256935258).

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

139354272 is a wasteful number, since it uses less digits than its factorization.

139354272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483885 (or 483874 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 139354272 is about 11804.8410408612. The cubic root of 139354272 is about 518.4498608877.

The spelling of 139354272 in words is "one hundred thirty-nine million, three hundred fifty-four thousand, two hundred seventy-two".