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139179701 is a prime number
BaseRepresentation
bin10000100101110…
…11011010110101
3100200220001122202
420102323122311
5241112222301
621451034245
73310002503
oct1022733265
9320801582
10139179701
1171621851
123a73b985
1322ab0b6b
14146ad673
15c34366b
hex84bb6b5

139179701 has 2 divisors, whose sum is σ = 139179702. Its totient is φ = 139179700.

The previous prime is 139179659. The next prime is 139179709. The reversal of 139179701 is 107971931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137007025 + 2172676 = 11705^2 + 1474^2 .

It is an emirp because it is prime and its reverse (107971931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139179701 - 222 = 134985397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139179709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69589850 + 69589851.

It is an arithmetic number, because the mean of its divisors is an integer number (69589851).

Almost surely, 2139179701 is an apocalyptic number.

It is an amenable number.

139179701 is a deficient number, since it is larger than the sum of its proper divisors (1).

139179701 is an equidigital number, since it uses as much as digits as its factorization.

139179701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11907, while the sum is 38.

The square root of 139179701 is about 11797.4446809468. Note that the first 3 decimals coincide. The cubic root of 139179701 is about 518.2332806841.

The spelling of 139179701 in words is "one hundred thirty-nine million, one hundred seventy-nine thousand, seven hundred one".