138130853 has 6 divisors (see below), whose sum is σ = 160682886. Its totient is φ = 118397832.

The previous prime is 138130849. The next prime is 138130871. The reversal of 138130853 is 358031831.

It can be written as a sum of positive squares in only one way, i.e., 123254404 + 14876449 = 11102^2 + 3857^2 .

It is not a de Polignac number, because 138130853 - 2² = 138130849 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138130843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1409450 + ... + 1409547.

It is an arithmetic number, because the mean of its divisors is an integer number (26780481).

Almost surely, 2^138130853 is an apocalyptic number.

It is an amenable number.

138130853 is a deficient number, since it is larger than the sum of its proper divisors (22552033).

138130853 is an equidigital number, since it uses as much as digits as its factorization.

138130853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819011 (or 2819004 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 138130853 is about 11752.9082783794. The cubic root of 138130853 is about 516.9282075535.

The spelling of 138130853 in words is "one hundred thirty-eight million, one hundred thirty thousand, eight hundred fifty-three".