132781903 has 4 divisors (see below), whose sum is σ = 136020528. Its totient is φ = 129543280.

The previous prime is 132781879. The next prime is 132781931. The reversal of 132781903 is 309187231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 309187231 = 409 ⋅755959.

It is a cyclic number.

It is not a de Polignac number, because 132781903 - 2⁹ = 132781391 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 (132781403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1619251 + ... + 1619332.

It is an arithmetic number, because the mean of its divisors is an integer number (34005132).

Almost surely, 2^132781903 is an apocalyptic number.

132781903 is a deficient number, since it is larger than the sum of its proper divisors (3238625).

132781903 is an equidigital number, since it uses as much as digits as its factorization.

132781903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238624.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 132781903 is about 11523.1030109081. The cubic root of 132781903 is about 510.1677046831.

The spelling of 132781903 in words is "one hundred thirty-two million, seven hundred eighty-one thousand, nine hundred three".