10421156 has 6 divisors (see below), whose sum is σ = 18237030. Its totient is φ = 5210576.

The previous prime is 10421143. The next prime is 10421207. The reversal of 10421156 is 65112401.

It can be written as a sum of positive squares in only one way, i.e., 6421156 + 4000000 = 2534^2 + 2000^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302641 + ... + 1302648.

It is an arithmetic number, because the mean of its divisors is an integer number (3039505).

Almost surely, 2^10421156 is an apocalyptic number.

It is an amenable number.

10421156 is a deficient number, since it is larger than the sum of its proper divisors (7815874).

10421156 is a wasteful number, since it uses less digits than its factorization.

10421156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605293 (or 2605291 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 10421156 is about 3228.1815314508. The cubic root of 10421156 is about 218.4264860292.

Adding to 10421156 its reverse (65112401), we get a palindrome (75533557).

The spelling of 10421156 in words is "ten million, four hundred twenty-one thousand, one hundred fifty-six".