1494822881 has 2 divisors, whose sum is σ = 1494822882. Its totient is φ = 1494822880.

The previous prime is 1494822859. The next prime is 1494822887. The reversal of 1494822881 is 1882284941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 923612881 + 571210000 = 30391^2 + 23900^2 .

It is a cyclic number.

It is not a de Polignac number, because 1494822881 - 2¹⁸ = 1494560737 is a prime.

It is a super-2 number, since 2×1494822881² = 4468990891122280322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1494822887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747411440 + 747411441.

It is an arithmetic number, because the mean of its divisors is an integer number (747411441).

Almost surely, 2^1494822881 is an apocalyptic number.

It is an amenable number.

1494822881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1494822881 is an equidigital number, since it uses as much as digits as its factorization.

1494822881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 294912, while the sum is 47.

The square root of 1494822881 is about 38662.9393735138. The cubic root of 1494822881 is about 1143.3957641047.

The spelling of 1494822881 in words is "one billion, four hundred ninety-four million, eight hundred twenty-two thousand, eight hundred eighty-one".