133705742 has 16 divisors (see below), whose sum is σ = 203254272. Its totient is φ = 65959320.

The previous prime is 133705723. The next prime is 133705757. The reversal of 133705742 is 247507331.

It is a junction number, because it is equal to n+sod(n) for n = 133705699 and 133705708.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 63023 + ... + 65109.

It is an arithmetic number, because the mean of its divisors is an integer number (12703392).

Almost surely, 2^133705742 is an apocalyptic number.

133705742 is a deficient number, since it is larger than the sum of its proper divisors (69548530).

133705742 is a wasteful number, since it uses less digits than its factorization.

133705742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 133705742 is about 11563.1199077066. The cubic root of 133705742 is about 511.3481465795.

The spelling of 133705742 in words is "one hundred thirty-three million, seven hundred five thousand, seven hundred forty-two".