201541356 has 18 divisors (see below), whose sum is σ = 509451852. Its totient is φ = 67180440.

The previous prime is 201541321. The next prime is 201541357. The reversal of 201541356 is 653145102.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (201541357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2799150 + ... + 2799221.

Almost surely, 2^201541356 is an apocalyptic number.

It is an amenable number.

201541356 is an abundant number, since it is smaller than the sum of its proper divisors (307910496).

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

201541356 is a wasteful number, since it uses less digits than its factorization.

201541356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5598381 (or 5598376 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 201541356 is about 14196.5261948126. The cubic root of 201541356 is about 586.3020221671.

Adding to 201541356 its reverse (653145102), we get a palindrome (854686458).

The spelling of 201541356 in words is "two hundred one million, five hundred forty-one thousand, three hundred fifty-six".