201451552849 has 6 divisors (see below), whose sum is σ = 204248971446. Its totient is φ = 198691937280.

The previous prime is 201451552829. The next prime is 201451552877. The reversal of 201451552849 is 948255154102.

It is a happy number.

201451552849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 42296035600 + 159155517249 = 205660^2 + 398943^2 .

It is not a de Polignac number, because 201451552849 - 2²⁹ = 200914681937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201451552799 and 201451552808.

It is not an unprimeable number, because it can be changed into a prime (201451552829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18896112 + ... + 18906769.

It is an arithmetic number, because the mean of its divisors is an integer number (34041495241).

Almost surely, 2^201451552849 is an apocalyptic number.

It is an amenable number.

201451552849 is a deficient number, since it is larger than the sum of its proper divisors (2797418597).

201451552849 is an frugal number, since it uses more digits than its factorization.

201451552849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37803027 (or 37802954 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 46.

The spelling of 201451552849 in words is "two hundred one billion, four hundred fifty-one million, five hundred fifty-two thousand, eight hundred forty-nine".