133739533 has 4 divisors (see below), whose sum is σ = 133849408. Its totient is φ = 133629660.

The previous prime is 133739521. The next prime is 133739591. The reversal of 133739533 is 335937331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 335937331 = 1543 ⋅217717.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133739533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133739492 and 133739501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133739513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53091 + ... + 55552.

It is an arithmetic number, because the mean of its divisors is an integer number (33462352).

Almost surely, 2^133739533 is an apocalyptic number.

It is an amenable number.

133739533 is a deficient number, since it is larger than the sum of its proper divisors (109875).

133739533 is a wasteful number, since it uses less digits than its factorization.

133739533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109874.

The product of its digits is 76545, while the sum is 37.

The square root of 133739533 is about 11564.5809694947. The cubic root of 133739533 is about 511.3912200470.

The spelling of 133739533 in words is "one hundred thirty-three million, seven hundred thirty-nine thousand, five hundred thirty-three".