201024542 has 16 divisors (see below), whose sum is σ = 306612000. Its totient is φ = 98834400.

The previous prime is 201024539. The next prime is 201024557. The reversal of 201024542 is 245420102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26759 + ... + 33437.

It is an arithmetic number, because the mean of its divisors is an integer number (19163250).

Almost surely, 2^201024542 is an apocalyptic number.

201024542 is a deficient number, since it is larger than the sum of its proper divisors (105587458).

201024542 is a wasteful number, since it uses less digits than its factorization.

201024542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6931.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 201024542 is about 14178.3123819445. The cubic root of 201024542 is about 585.8004403053.

Adding to 201024542 its reverse (245420102), we get a palindrome (446444644).

The spelling of 201024542 in words is "two hundred one million, twenty-four thousand, five hundred forty-two".