1423046281 has 4 divisors (see below), whose sum is σ = 1425266964. Its totient is φ = 1420825600.

The previous prime is 1423046243. The next prime is 1423046293. The reversal of 1423046281 is 1826403241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1826403241 = 13 ⋅140492557.

It can be written as a sum of positive squares in 2 ways, for example, as 1098325881 + 324720400 = 33141^2 + 18020^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423046281 - 2¹⁹ = 1422521993 is a prime.

It is a super-2 number, since 2×1423046281² = 4050121435735861922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423046221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1109380 + ... + 1110661.

It is an arithmetic number, because the mean of its divisors is an integer number (356316741).

Almost surely, 2^1423046281 is an apocalyptic number.

It is an amenable number.

1423046281 is a deficient number, since it is larger than the sum of its proper divisors (2220683).

1423046281 is an equidigital number, since it uses as much as digits as its factorization.

1423046281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220682.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1423046281 is about 37723.2856601861. The cubic root of 1423046281 is about 1124.7940445364.

The spelling of 1423046281 in words is "one billion, four hundred twenty-three million, forty-six thousand, two hundred eighty-one".