11421250 has 20 divisors (see below), whose sum is σ = 21410334. Its totient is φ = 4568000.

The previous prime is 11421233. The next prime is 11421251. The reversal of 11421250 is 5212411.

It can be written as a sum of positive squares in 5 ways, for example, as 603729 + 10817521 = 777^2 + 3289^2 .

It is not an unprimeable number, because it can be changed into a prime (11421251) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3319 + ... + 5818.

Almost surely, 2^11421250 is an apocalyptic number.

11421250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11421250 is a deficient number, since it is larger than the sum of its proper divisors (9989084).

11421250 is an frugal number, since it uses more digits than its factorization.

11421250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9159 (or 9144 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 11421250 is about 3379.5339915438. The cubic root of 11421250 is about 225.2014656438.

Adding to 11421250 its reverse (5212411), we get a palindrome (16633661).

The spelling of 11421250 in words is "eleven million, four hundred twenty-one thousand, two hundred fifty".