139453373 has 4 divisors (see below), whose sum is σ = 144262140. Its totient is φ = 134644608.

The previous prime is 139453367. The next prime is 139453453. The reversal of 139453373 is 373354931.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100540729 + 38912644 = 10027^2 + 6238^2 .

It is a cyclic number.

It is not a de Polignac number, because 139453373 - 2¹⁸ = 139191229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139453313) 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 in 3 ways as a sum of consecutive naturals, for example, 2404340 + ... + 2404397.

It is an arithmetic number, because the mean of its divisors is an integer number (36065535).

Almost surely, 2^139453373 is an apocalyptic number.

It is an amenable number.

139453373 is a deficient number, since it is larger than the sum of its proper divisors (4808767).

139453373 is an equidigital number, since it uses as much as digits as its factorization.

139453373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4808766.

The product of its digits is 102060, while the sum is 38.

The square root of 139453373 is about 11809.0377677438. The cubic root of 139453373 is about 518.5727293257.

The spelling of 139453373 in words is "one hundred thirty-nine million, four hundred fifty-three thousand, three hundred seventy-three".