73755133 has 4 divisors (see below), whose sum is σ = 75005280. Its totient is φ = 72504988.

The previous prime is 73755127. The next prime is 73755137. The reversal of 73755133 is 33155737.

It is a happy number.

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: 33155737 = 37 ⋅896101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73755133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73755137) 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, 624985 + ... + 625102.

It is an arithmetic number, because the mean of its divisors is an integer number (18751320).

Almost surely, 2^73755133 is an apocalyptic number.

It is an amenable number.

73755133 is a deficient number, since it is larger than the sum of its proper divisors (1250147).

73755133 is a wasteful number, since it uses less digits than its factorization.

73755133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250146.

The product of its digits is 33075, while the sum is 34.

The square root of 73755133 is about 8588.0808682732. The cubic root of 73755133 is about 419.3700552602.

The spelling of 73755133 in words is "seventy-three million, seven hundred fifty-five thousand, one hundred thirty-three".