1420145 has 8 divisors (see below), whose sum is σ = 1710720. Its totient is φ = 1131760.

The previous prime is 1420123. The next prime is 1420151. The reversal of 1420145 is 5410241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1420145 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1826 + ... + 2484.

It is an arithmetic number, because the mean of its divisors is an integer number (213840).

2^1420145 is an apocalyptic number.

It is an amenable number.

1420145 is a deficient number, since it is larger than the sum of its proper divisors (290575).

1420145 is an equidigital number, since it uses as much as digits as its factorization.

1420145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1420145 is about 1191.6983678767. The cubic root of 1420145 is about 112.4029121217.

Adding to 1420145 its reverse (5410241), we get a palindrome (6830386).

The spelling of 1420145 in words is "one million, four hundred twenty thousand, one hundred forty-five".