201542510 has 16 divisors (see below), whose sum is σ = 390682656. Its totient is φ = 74415648.

The previous prime is 201542507. The next prime is 201542527. The reversal of 201542510 is 15245102.

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 7 ways as a sum of consecutive naturals, for example, 775034 + ... + 775293.

It is an arithmetic number, because the mean of its divisors is an integer number (24417666).

Almost surely, 2^201542510 is an apocalyptic number.

201542510 is a deficient number, since it is larger than the sum of its proper divisors (189140146).

201542510 is a wasteful number, since it uses less digits than its factorization.

201542510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550347.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 201542510 is about 14196.5668385001. The cubic root of 201542510 is about 586.3031411951.

Adding to 201542510 its reverse (15245102), we get a palindrome (216787612).

The spelling of 201542510 in words is "two hundred one million, five hundred forty-two thousand, five hundred ten".