201450452215 has 4 divisors (see below), whose sum is σ = 241740542664. Its totient is φ = 161160361768.

The previous prime is 201450452089. The next prime is 201450452221. The reversal of 201450452215 is 512254054102.

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 201450452215 - 2⁹ = 201450451703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20145045217 + ... + 20145045226.

It is an arithmetic number, because the mean of its divisors is an integer number (60435135666).

Almost surely, 2^201450452215 is an apocalyptic number.

201450452215 is a deficient number, since it is larger than the sum of its proper divisors (40290090449).

201450452215 is an equidigital number, since it uses as much as digits as its factorization.

201450452215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40290090448.

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

The spelling of 201450452215 in words is "two hundred one billion, four hundred fifty million, four hundred fifty-two thousand, two hundred fifteen".