139324373 has 2 divisors, whose sum is σ = 139324374. Its totient is φ = 139324372.

The previous prime is 139324337. The next prime is 139324399. The reversal of 139324373 is 373423931.

Together with previous prime (139324337) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72624484 + 66699889 = 8522^2 + 8167^2 .

It is an emirp because it is prime and its reverse (373423931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139324373 - 2⁸ = 139324117 is a prime.

It is a super-2 number, since 2×139324373² = 38822561823686258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139320373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69662186 + 69662187.

It is an arithmetic number, because the mean of its divisors is an integer number (69662187).

Almost surely, 2^139324373 is an apocalyptic number.

It is an amenable number.

139324373 is a deficient number, since it is larger than the sum of its proper divisors (1).

139324373 is an equidigital number, since it uses as much as digits as its factorization.

139324373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 35.

The square root of 139324373 is about 11803.5745856923. The cubic root of 139324373 is about 518.4127797589.

The spelling of 139324373 in words is "one hundred thirty-nine million, three hundred twenty-four thousand, three hundred seventy-three".