139175453 has 2 divisors, whose sum is σ = 139175454. Its totient is φ = 139175452.

The previous prime is 139175429. The next prime is 139175473. The reversal of 139175453 is 354571931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79530724 + 59644729 = 8918^2 + 7723^2 .

It is a cyclic number.

It is not a de Polignac number, because 139175453 - 2¹⁰ = 139174429 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139175473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69587726 + 69587727.

It is an arithmetic number, because the mean of its divisors is an integer number (69587727).

Almost surely, 2^139175453 is an apocalyptic number.

It is an amenable number.

139175453 is a deficient number, since it is larger than the sum of its proper divisors (1).

139175453 is an equidigital number, since it uses as much as digits as its factorization.

139175453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 38.

The square root of 139175453 is about 11797.2646405851. The cubic root of 139175453 is about 518.2280081782.

The spelling of 139175453 in words is "one hundred thirty-nine million, one hundred seventy-five thousand, four hundred fifty-three".