1140623 has 8 divisors (see below), whose sum is σ = 1258320. Its totient is φ = 1025280.

The previous prime is 1140619. The next prime is 1140637. The reversal of 1140623 is 3260411.

It is a Cunningham number, because it is equal to 1068²-1.

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

It is a cyclic number.

It is not a de Polignac number, because 1140623 - 2² = 1140619 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (157290).

2^1140623 is an apocalyptic number.

1140623 is a deficient number, since it is larger than the sum of its proper divisors (117697).

1140623 is a wasteful number, since it uses less digits than its factorization.

1140623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1140623 is about 1067.9995318351. Note that the first 3 decimals coincide. The cubic root of 1140623 is about 104.4834188415.

The spelling of 1140623 in words is "one million, one hundred forty thousand, six hundred twenty-three".