201548424285 has 64 divisors (see below), whose sum is σ = 399176467200. Its totient is φ = 95802303744.

The previous prime is 201548424173. The next prime is 201548424289. The reversal of 201548424285 is 582424845102.

It is a happy number.

201548424285 is a `hidden beast` number, since 2 + 0 + 1 + 548 + 4 + 24 + 2 + 85 = 666.

It is not a de Polignac number, because 201548424285 - 2⁹ = 201548423773 is a prime.

It is a super-2 number, since 2×201548424285² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 201548424285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201548424289) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1929147 + ... + 2030936.

It is an arithmetic number, because the mean of its divisors is an integer number (6237132300).

Almost surely, 2^201548424285 is an apocalyptic number.

It is an amenable number.

201548424285 is a deficient number, since it is larger than the sum of its proper divisors (197628042915).

201548424285 is a wasteful number, since it uses less digits than its factorization.

201548424285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960139 (or 3960133 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 45.

The spelling of 201548424285 in words is "two hundred one billion, five hundred forty-eight million, four hundred twenty-four thousand, two hundred eighty-five".