138832501 has 4 divisors (see below), whose sum is σ = 141786432. Its totient is φ = 135878572.

The previous prime is 138832457. The next prime is 138832513. The reversal of 138832501 is 105238831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 138832501 - 2¹⁷ = 138701429 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 (138832201) 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 in 3 ways as a sum of consecutive naturals, for example, 1476895 + ... + 1476988.

It is an arithmetic number, because the mean of its divisors is an integer number (35446608).

Almost surely, 2^138832501 is an apocalyptic number.

It is an amenable number.

138832501 is a deficient number, since it is larger than the sum of its proper divisors (2953931).

138832501 is an equidigital number, since it uses as much as digits as its factorization.

138832501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953930.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 138832501 is about 11782.7204413921. The cubic root of 138832501 is about 517.8019907264.

It can be divided in two parts, 13883 and 2501, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 138832501 in words is "one hundred thirty-eight million, eight hundred thirty-two thousand, five hundred one".