1401859 has 4 divisors (see below), whose sum is σ = 1404616. Its totient is φ = 1399104.

The previous prime is 1401857. The next prime is 1401937. The reversal of 1401859 is 9581041.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1401859 - 2¹ = 1401857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401857) 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, 369 + ... + 1714.

It is an arithmetic number, because the mean of its divisors is an integer number (351154).

2^1401859 is an apocalyptic number.

1401859 is a deficient number, since it is larger than the sum of its proper divisors (2757).

1401859 is an equidigital number, since it uses as much as digits as its factorization.

1401859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756.

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

The square root of 1401859 is about 1184.0012668912. The cubic root of 1401859 is about 111.9183876113.

The spelling of 1401859 in words is "one million, four hundred one thousand, eight hundred fifty-nine".