1423047761 has 2 divisors, whose sum is σ = 1423047762. Its totient is φ = 1423047760.

The previous prime is 1423047757. The next prime is 1423047767. The reversal of 1423047761 is 1677403241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1405875025 + 17172736 = 37495^2 + 4144^2 .

It is an emirp because it is prime and its reverse (1677403241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1423047761 - 2² = 1423047757 is a prime.

It is a super-2 number, since 2×1423047761² = 4050129860174226242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1423047767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711523880 + 711523881.

It is an arithmetic number, because the mean of its divisors is an integer number (711523881).

Almost surely, 2^1423047761 is an apocalyptic number.

It is an amenable number.

1423047761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423047761 is an equidigital number, since it uses as much as digits as its factorization.

1423047761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 1423047761 is about 37723.3052767119. The cubic root of 1423047761 is about 1124.7944344733.

The spelling of 1423047761 in words is "one billion, four hundred twenty-three million, forty-seven thousand, seven hundred sixty-one".