1420159 has 8 divisors (see below), whose sum is σ = 1582560.
Its totient is φ = 1265376.
The previous prime is 1420151. The next prime is 1420169. The reversal of 1420159 is 9510241.
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 1420159 - 23 = 1420151 is a prime.
It is a Duffinian number.
1420159 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1420151) 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, 1507 + ... + 2260.
It is an arithmetic number, because the mean of its divisors is an integer number (197820).
21420159 is an apocalyptic number.
1420159 is the 754-th heptagonal number.
1420159 is a deficient number, since it is larger than the sum of its proper divisors (162401).
1420159 is a wasteful number, since it uses less digits than its factorization.
1420159 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3809.
The product of its (nonzero) digits is 360, while the sum is 22.
The square root of 1420159 is about 1191.7042418318.
The cubic root of 1420159 is about 112.4032814820.
The spelling of 1420159 in words is "one million, four hundred twenty thousand, one hundred fifty-nine".