132420139 has 4 divisors (see below), whose sum is σ = 139389640. Its totient is φ = 125450640.

The previous prime is 132420137. The next prime is 132420149. The reversal of 132420139 is 931024231.

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

It is a cyclic number.

It is not a de Polignac number, because 132420139 - 2¹ = 132420137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132420137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3484722 + ... + 3484759.

It is an arithmetic number, because the mean of its divisors is an integer number (34847410).

Almost surely, 2^132420139 is an apocalyptic number.

132420139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

132420139 is a deficient number, since it is larger than the sum of its proper divisors (6969501).

132420139 is an equidigital number, since it uses as much as digits as its factorization.

132420139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6969500.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 132420139 is about 11507.3949701920. The cubic root of 132420139 is about 509.7039663501.

The spelling of 132420139 in words is "one hundred thirty-two million, four hundred twenty thousand, one hundred thirty-nine".