201447557241 has 16 divisors (see below), whose sum is σ = 310853376000. Its totient is φ = 113655763728.

The previous prime is 201447557221. The next prime is 201447557291. The reversal of 201447557241 is 142755744102.

It is not a de Polignac number, because 201447557241 - 2³⁵ = 167087818873 is a prime.

It is a super-2 number, since 2×201447557241² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201447557193 and 201447557202.

It is not an unprimeable number, because it can be changed into a prime (201447557221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60711891 + ... + 60715208.

It is an arithmetic number, because the mean of its divisors is an integer number (19428336000).

Almost surely, 2^201447557241 is an apocalyptic number.

201447557241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201447557241 is a deficient number, since it is larger than the sum of its proper divisors (109405818759).

201447557241 is a wasteful number, since it uses less digits than its factorization.

201447557241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121427188.

The product of its (nonzero) digits is 313600, while the sum is 42.

The spelling of 201447557241 in words is "two hundred one billion, four hundred forty-seven million, five hundred fifty-seven thousand, two hundred forty-one".