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139130 = 2513913
BaseRepresentation
bin100001111101111010
321001211222
4201331322
513423010
62552042
71116425
oct417572
9231758
10139130
1195592
1268622
134b434
14389bc
152b355
hex21f7a

139130 has 8 divisors (see below), whose sum is σ = 250452. Its totient is φ = 55648.

The previous prime is 139123. The next prime is 139133. The reversal of 139130 is 31931.

It is a Cunningham number, because it is equal to 3732+1.

It can be written as a sum of positive squares in 2 ways, for example, as 139129 + 1 = 373^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 139099 and 139108.

It is not an unprimeable number, because it can be changed into a prime (139133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6947 + ... + 6966.

2139130 is an apocalyptic number.

139130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139130 is a deficient number, since it is larger than the sum of its proper divisors (111322).

139130 is a wasteful number, since it uses less digits than its factorization.

139130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13920.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 139130 is about 373.0013404802. The cubic root of 139130 is about 51.8171586393.

The spelling of 139130 in words is "one hundred thirty-nine thousand, one hundred thirty".

Divisors: 1 2 5 10 13913 27826 69565 139130