1420071 has 16 divisors (see below), whose sum is σ = 1969920. Its totient is φ = 909440.

The previous prime is 1420063. The next prime is 1420073. The reversal of 1420071 is 1700241.

It is a cyclic number.

It is not a de Polignac number, because 1420071 - 2³ = 1420063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1420071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12511 + ... + 12623.

It is an arithmetic number, because the mean of its divisors is an integer number (123120).

2^1420071 is an apocalyptic number.

1420071 is a deficient number, since it is larger than the sum of its proper divisors (549849).

1420071 is a wasteful number, since it uses less digits than its factorization.

1420071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 1420071 is about 1191.6673193471. The cubic root of 1420071 is about 112.4009597483.

The spelling of 1420071 in words is "one million, four hundred twenty thousand, seventy-one".