201454531 has 4 divisors (see below), whose sum is σ = 201652864. Its totient is φ = 201256200.

The previous prime is 201454501. The next prime is 201454543. The reversal of 201454531 is 135454102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201454531 - 2¹⁹ = 200930243 is a prime.

It is a super-2 number, since 2×201454531² = 81167856120859922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 201454496 and 201454505.

It is not an unprimeable number, because it can be changed into a prime (201454501) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 97635 + ... + 99676.

It is an arithmetic number, because the mean of its divisors is an integer number (50413216).

Almost surely, 2^201454531 is an apocalyptic number.

201454531 is a deficient number, since it is larger than the sum of its proper divisors (198333).

201454531 is a wasteful number, since it uses less digits than its factorization.

201454531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198332.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 201454531 is about 14193.4678990020. The cubic root of 201454531 is about 586.2178161494.

The spelling of 201454531 in words is "two hundred one million, four hundred fifty-four thousand, five hundred thirty-one".