133142340 has 24 divisors (see below), whose sum is σ = 372798720. Its totient is φ = 35504608.

The previous prime is 133142327. The next prime is 133142389. The reversal of 133142340 is 43241331.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1109460 + ... + 1109579.

It is an arithmetic number, because the mean of its divisors is an integer number (15533280).

Almost surely, 2^133142340 is an apocalyptic number.

133142340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133142340 is an abundant number, since it is smaller than the sum of its proper divisors (239656380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133142340 is a wasteful number, since it uses less digits than its factorization.

133142340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219051 (or 2219049 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 133142340 is about 11538.7321660571. The cubic root of 133142340 is about 510.6289050407.

Adding to 133142340 its reverse (43241331), we get a palindrome (176383671).

The spelling of 133142340 in words is "one hundred thirty-three million, one hundred forty-two thousand, three hundred forty".