201453533 has 4 divisors (see below), whose sum is σ = 203880768. Its totient is φ = 199026300.

The previous prime is 201453521. The next prime is 201453569. The reversal of 201453533 is 335354102.

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: 335354102 = 2 ⋅167677051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201453533 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 (201453433) 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, 1213493 + ... + 1213658.

It is an arithmetic number, because the mean of its divisors is an integer number (50970192).

Almost surely, 2^201453533 is an apocalyptic number.

It is an amenable number.

201453533 is a deficient number, since it is larger than the sum of its proper divisors (2427235).

201453533 is an equidigital number, since it uses as much as digits as its factorization.

201453533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427234.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 201453533 is about 14193.4327419409. The cubic root of 201453533 is about 586.2168481124.

The spelling of 201453533 in words is "two hundred one million, four hundred fifty-three thousand, five hundred thirty-three".