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139053 = 346351
BaseRepresentation
bin100001111100101101
321001202010
4201330231
513422203
62551433
71116255
oct417455
9231663
10139053
1195522
1268579
134b3a5
1438965
152b303
hex21f2d

139053 has 4 divisors (see below), whose sum is σ = 185408. Its totient is φ = 92700.

The previous prime is 139033. The next prime is 139067. The reversal of 139053 is 350931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 139053 - 25 = 139021 is a prime.

It is a D-number.

It is a Duffinian number.

139053 is a lucky number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23173 + ... + 23178.

It is an arithmetic number, because the mean of its divisors is an integer number (46352).

2139053 is an apocalyptic number.

It is an amenable number.

139053 is a deficient number, since it is larger than the sum of its proper divisors (46355).

139053 is an equidigital number, since it uses as much as digits as its factorization.

139053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46354.

The product of its (nonzero) digits is 405, while the sum is 21.

The square root of 139053 is about 372.8981094079. The cubic root of 139053 is about 51.8075976592.

Adding to 139053 its reverse (350931), we get a palindrome (489984).

The spelling of 139053 in words is "one hundred thirty-nine thousand, fifty-three".

Divisors: 1 3 46351 139053