10021534 has 8 divisors (see below), whose sum is σ = 15916608. Its totient is φ = 4716000.

The previous prime is 10021519. The next prime is 10021541. The reversal of 10021534 is 43512001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10021534² = 200862287426312, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 147342 + ... + 147409.

It is an arithmetic number, because the mean of its divisors is an integer number (1989576).

Almost surely, 2^10021534 is an apocalyptic number.

10021534 is a deficient number, since it is larger than the sum of its proper divisors (5895074).

10021534 is a wasteful number, since it uses less digits than its factorization.

10021534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294770.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 10021534 is about 3165.6806535088. The cubic root of 10021534 is about 215.5980034534.

Adding to 10021534 its reverse (43512001), we get a palindrome (53533535).

The spelling of 10021534 in words is "ten million, twenty-one thousand, five hundred thirty-four".