1420223151 has 16 divisors (see below), whose sum is σ = 1909576800. Its totient is φ = 938864640.

The previous prime is 1420223141. The next prime is 1420223173. The reversal of 1420223151 is 1513220241.

It is not a de Polignac number, because 1420223151 - 2²² = 1416028847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420223131) 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 15 ways as a sum of consecutive naturals, for example, 298471 + ... + 303191.

It is an arithmetic number, because the mean of its divisors is an integer number (119348550).

Almost surely, 2^1420223151 is an apocalyptic number.

1420223151 is a deficient number, since it is larger than the sum of its proper divisors (489353649).

1420223151 is a wasteful number, since it uses less digits than its factorization.

1420223151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5546.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1420223151 is about 37685.8481528544. The cubic root of 1420223151 is about 1124.0497393907.

Adding to 1420223151 its reverse (1513220241), we get a palindrome (2933443392).

The spelling of 1420223151 in words is "one billion, four hundred twenty million, two hundred twenty-three thousand, one hundred fifty-one".