100521534 has 32 divisors (see below), whose sum is σ = 205299360. Its totient is φ = 32803200.

The previous prime is 100521529. The next prime is 100521539. The reversal of 100521534 is 435125001.

It is an interprime number because it is at equal distance from previous prime (100521529) and next prime (100521539).

It is a self number, because there is not a number n which added to its sum of digits gives 100521534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100521539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97944 + ... + 98964.

It is an arithmetic number, because the mean of its divisors is an integer number (6415605).

Almost surely, 2^100521534 is an apocalyptic number.

100521534 is an abundant number, since it is smaller than the sum of its proper divisors (104777826).

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

100521534 is a wasteful number, since it uses less digits than its factorization.

100521534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 100521534 is about 10026.0427886579. The cubic root of 100521534 is about 464.9644000957.

Adding to 100521534 its reverse (435125001), we get a palindrome (535646535).

The spelling of 100521534 in words is "one hundred million, five hundred twenty-one thousand, five hundred thirty-four".