201541534000 has 40 divisors (see below), whose sum is σ = 487327434048. Its totient is φ = 80616612800.

The previous prime is 201541533923. The next prime is 201541534037. The reversal of 201541534000 is 435145102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50383384 + ... + 50387383.

Almost surely, 2^201541534000 is an apocalyptic number.

201541534000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201541534000 is an abundant number, since it is smaller than the sum of its proper divisors (285785900048).

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

201541534000 is a wasteful number, since it uses less digits than its factorization.

201541534000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100770790 (or 100770774 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 201541534000 its reverse (435145102), we get a palindrome (201976679102).

The spelling of 201541534000 in words is "two hundred one billion, five hundred forty-one million, five hundred thirty-four thousand".