201450452251 has 32 divisors (see below), whose sum is σ = 221609001600. Its totient is φ = 182273710080.

The previous prime is 201450452243. The next prime is 201450452279. The reversal of 201450452251 is 152254054102.

It is a cyclic number.

It is not a de Polignac number, because 201450452251 - 2³ = 201450452243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201450452221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163913505 + ... + 163914733.

It is an arithmetic number, because the mean of its divisors is an integer number (6925281300).

Almost surely, 2^201450452251 is an apocalyptic number.

201450452251 is a deficient number, since it is larger than the sum of its proper divisors (20158549349).

201450452251 is a wasteful number, since it uses less digits than its factorization.

201450452251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 201450452251 in words is "two hundred one billion, four hundred fifty million, four hundred fifty-two thousand, two hundred fifty-one".