133842045 has 16 divisors (see below), whose sum is σ = 215785152. Its totient is φ = 70836480.

The previous prime is 133842043. The next prime is 133842073. The reversal of 133842045 is 540248331.

It is not a de Polignac number, because 133842045 - 2¹ = 133842043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133842043) 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 15 ways as a sum of consecutive naturals, for example, 32092 + ... + 36021.

It is an arithmetic number, because the mean of its divisors is an integer number (13486572).

Almost surely, 2^133842045 is an apocalyptic number.

133842045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133842045 is a deficient number, since it is larger than the sum of its proper divisors (81943107).

133842045 is a wasteful number, since it uses less digits than its factorization.

133842045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68252.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 133842045 is about 11569.0122741745. The cubic root of 133842045 is about 511.5218479596.

The spelling of 133842045 in words is "one hundred thirty-three million, eight hundred forty-two thousand, forty-five".