132139838 has 4 divisors (see below), whose sum is σ = 198209760. Its totient is φ = 66069918.

The previous prime is 132139837. The next prime is 132139841. The reversal of 132139838 is 838931231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 838931231 = 61 ⋅13752971.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132139837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33034958 + ... + 33034961.

It is an arithmetic number, because the mean of its divisors is an integer number (49552440).

Almost surely, 2^132139838 is an apocalyptic number.

132139838 is a deficient number, since it is larger than the sum of its proper divisors (66069922).

132139838 is an equidigital number, since it uses as much as digits as its factorization.

132139838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66069921.

The product of its digits is 31104, while the sum is 38.

The square root of 132139838 is about 11495.2093499858. The cubic root of 132139838 is about 509.3440728108.

The spelling of 132139838 in words is "one hundred thirty-two million, one hundred thirty-nine thousand, eight hundred thirty-eight".