201548540 has 48 divisors (see below), whose sum is σ = 446306112. Its totient is φ = 76302336.

The previous prime is 201548539. The next prime is 201548569. The reversal of 201548540 is 45845102.

201548540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201548540² = 81243627952263200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42362 + ... + 46878.

It is an arithmetic number, because the mean of its divisors is an integer number (9298044).

Almost surely, 2^201548540 is an apocalyptic number.

201548540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201548540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223153056).

201548540 is an abundant number, since it is smaller than the sum of its proper divisors (244757572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201548540 is a wasteful number, since it uses less digits than its factorization.

201548540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4646 (or 4644 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 201548540 is about 14196.7792122016. The cubic root of 201548540 is about 586.3089883861.

The spelling of 201548540 in words is "two hundred one million, five hundred forty-eight thousand, five hundred forty".