1401589 has 4 divisors (see below), whose sum is σ = 1601824. Its totient is φ = 1201356.

The previous prime is 1401571. The next prime is 1401601. The reversal of 1401589 is 9851041.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9851041 = 17 ⋅579473.

It is a cyclic number.

It is not a de Polignac number, because 1401589 - 2⁷ = 1401461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100107 + ... + 100120.

It is an arithmetic number, because the mean of its divisors is an integer number (400456).

2^1401589 is an apocalyptic number.

It is an amenable number.

1401589 is a deficient number, since it is larger than the sum of its proper divisors (200235).

1401589 is an equidigital number, since it uses as much as digits as its factorization.

1401589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200234.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1401589 is about 1183.8872412523. The cubic root of 1401589 is about 111.9112019374.

The spelling of 1401589 in words is "one million, four hundred one thousand, five hundred eighty-nine".