1420289223 has 4 divisors (see below), whose sum is σ = 1893718968. Its totient is φ = 946859480.

The previous prime is 1420289207. The next prime is 1420289251. The reversal of 1420289223 is 3229820241.

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 1420289223 - 2⁴ = 1420289207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420289623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236714868 + ... + 236714873.

It is an arithmetic number, because the mean of its divisors is an integer number (473429742).

Almost surely, 2^1420289223 is an apocalyptic number.

1420289223 is a deficient number, since it is larger than the sum of its proper divisors (473429745).

1420289223 is an equidigital number, since it uses as much as digits as its factorization.

1420289223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473429744.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1420289223 is about 37686.7247581957. The cubic root of 1420289223 is about 1124.0671702343.

The spelling of 1420289223 in words is "one billion, four hundred twenty million, two hundred eighty-nine thousand, two hundred twenty-three".