201630253254 has 8 divisors (see below), whose sum is σ = 403260506520. Its totient is φ = 67210084416.

The previous prime is 201630253249. The next prime is 201630253259. The reversal of 201630253254 is 452352036102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201630253249) and next prime (201630253259).

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

201630253254 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201630253259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16802521099 + ... + 16802521110.

It is an arithmetic number, because the mean of its divisors is an integer number (50407563315).

Almost surely, 2^201630253254 is an apocalyptic number.

201630253254 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201630253254 is a wasteful number, since it uses less digits than its factorization.

201630253254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33605042214.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 201630253254 its reverse (452352036102), we get a palindrome (653982289356).

The spelling of 201630253254 in words is "two hundred one billion, six hundred thirty million, two hundred fifty-three thousand, two hundred fifty-four".