139976093 has 2 divisors, whose sum is σ = 139976094. Its totient is φ = 139976092.

The previous prime is 139976063. The next prime is 139976099. The reversal of 139976093 is 390679931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133934329 + 6041764 = 11573^2 + 2458^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139976093 is a prime.

It is a super-2 number, since 2×139976093² = 39186613223089298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139976099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69988046 + 69988047.

It is an arithmetic number, because the mean of its divisors is an integer number (69988047).

Almost surely, 2^139976093 is an apocalyptic number.

It is an amenable number.

139976093 is a deficient number, since it is larger than the sum of its proper divisors (1).

139976093 is an equidigital number, since it uses as much as digits as its factorization.

139976093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 47.

The square root of 139976093 is about 11831.1492679283. The cubic root of 139976093 is about 519.2198520843.

The spelling of 139976093 in words is "one hundred thirty-nine million, nine hundred seventy-six thousand, ninety-three".