1401583 has 4 divisors (see below), whose sum is σ = 1406080. Its totient is φ = 1397088.

The previous prime is 1401571. The next prime is 1401601. The reversal of 1401583 is 3851041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401083) by changing a digit.

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, 1743 + ... + 2416.

It is an arithmetic number, because the mean of its divisors is an integer number (351520).

2^1401583 is an apocalyptic number.

1401583 is a deficient number, since it is larger than the sum of its proper divisors (4497).

1401583 is an equidigital number, since it uses as much as digits as its factorization.

1401583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1401583 is about 1183.8847072245. The cubic root of 1401583 is about 111.9110422453.

The spelling of 1401583 in words is "one million, four hundred one thousand, five hundred eighty-three".