1423421507 has 2 divisors, whose sum is σ = 1423421508. Its totient is φ = 1423421506.

The previous prime is 1423421497. The next prime is 1423421533. The reversal of 1423421507 is 7051243241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1423421507 - 2⁴ = 1423421491 is a prime.

It is a super-2 number, since 2×1423421507² = 4052257573180302098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1423421507.

It is not a weakly prime, because it can be changed into another prime (1423421557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711710753 + 711710754.

It is an arithmetic number, because the mean of its divisors is an integer number (711710754).

Almost surely, 2^1423421507 is an apocalyptic number.

1423421507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423421507 is an equidigital number, since it uses as much as digits as its factorization.

1423421507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1423421507 is about 37728.2587326794. The cubic root of 1423421507 is about 1124.8928969972.

Adding to 1423421507 its reverse (7051243241), we get a palindrome (8474664748).

The spelling of 1423421507 in words is "one billion, four hundred twenty-three million, four hundred twenty-one thousand, five hundred seven".