133346740 has 12 divisors (see below), whose sum is σ = 280028196. Its totient is φ = 53338688.

The previous prime is 133346737. The next prime is 133346743. The reversal of 133346740 is 47643331.

It is an interprime number because it is at equal distance from previous prime (133346737) and next prime (133346743).

It can be written as a sum of positive squares in 2 ways, for example, as 103469584 + 29877156 = 10172^2 + 5466^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133346743) 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, 3333649 + ... + 3333688.

It is an arithmetic number, because the mean of its divisors is an integer number (23335683).

Almost surely, 2^133346740 is an apocalyptic number.

133346740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133346740 is an abundant number, since it is smaller than the sum of its proper divisors (146681456).

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

133346740 is a wasteful number, since it uses less digits than its factorization.

133346740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667346 (or 6667344 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 133346740 is about 11547.5858948960. The cubic root of 133346740 is about 510.8900771137.

The spelling of 133346740 in words is "one hundred thirty-three million, three hundred forty-six thousand, seven hundred forty".