201231453 has 8 divisors (see below), whose sum is σ = 270018208. Its totient is φ = 133299504.

The previous prime is 201231427. The next prime is 201231463. The reversal of 201231453 is 354132102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201231453 - 2⁶ = 201231389 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 (201231463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213151 + ... + 214092.

It is an arithmetic number, because the mean of its divisors is an integer number (33752276).

Almost surely, 2^201231453 is an apocalyptic number.

It is an amenable number.

201231453 is a deficient number, since it is larger than the sum of its proper divisors (68786755).

201231453 is a wasteful number, since it uses less digits than its factorization.

201231453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427403.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 201231453 is about 14185.6072481935. The cubic root of 201231453 is about 586.0013560600.

Adding to 201231453 its reverse (354132102), we get a palindrome (555363555).

The spelling of 201231453 in words is "two hundred one million, two hundred thirty-one thousand, four hundred fifty-three".