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1140621 = 3380207
BaseRepresentation
bin100010110011110001101
32010221122020
410112132031
5242444441
640240353
712460266
oct4263615
92127566
101140621
11709a69
124700b9
1330c231
1421996d
15177e66
hex11678d

1140621 has 4 divisors (see below), whose sum is σ = 1520832. Its totient is φ = 760412.

The previous prime is 1140619. The next prime is 1140637. The reversal of 1140621 is 1260411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1140621 - 21 = 1140619 is a prime.

It is a D-number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1140621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140611) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 190101 + ... + 190106.

It is an arithmetic number, because the mean of its divisors is an integer number (380208).

21140621 is an apocalyptic number.

It is an amenable number.

1140621 is a deficient number, since it is larger than the sum of its proper divisors (380211).

1140621 is an equidigital number, since it uses as much as digits as its factorization.

1140621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380210.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1140621 is about 1067.9985955047. The cubic root of 1140621 is about 104.4833577734.

The spelling of 1140621 in words is "one million, one hundred forty thousand, six hundred twenty-one".

Divisors: 1 3 380207 1140621