132946945 has 4 divisors (see below), whose sum is σ = 159536340. Its totient is φ = 106357552.

The previous prime is 132946903. The next prime is 132946951. The reversal of 132946945 is 549649231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 549649231 = 991 ⋅554641.

It can be written as a sum of positive squares in 2 ways, for example, as 24641296 + 108305649 = 4964^2 + 10407^2 .

It is a cyclic number.

It is not a de Polignac number, because 132946945 - 2⁹ = 132946433 is a prime.

It is an unprimeable number.

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, 13294690 + ... + 13294699.

It is an arithmetic number, because the mean of its divisors is an integer number (39884085).

Almost surely, 2^132946945 is an apocalyptic number.

It is an amenable number.

132946945 is a deficient number, since it is larger than the sum of its proper divisors (26589395).

132946945 is an equidigital number, since it uses as much as digits as its factorization.

132946945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26589394.

The product of its digits is 233280, while the sum is 43.

The square root of 132946945 is about 11530.2621392577. The cubic root of 132946945 is about 510.3789890907.

The spelling of 132946945 in words is "one hundred thirty-two million, nine hundred forty-six thousand, nine hundred forty-five".