1494321197 has 2 divisors, whose sum is σ = 1494321198. Its totient is φ = 1494321196.

The previous prime is 1494321121. The next prime is 1494321263. The reversal of 1494321197 is 7911234941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1490809321 + 3511876 = 38611^2 + 1874^2 .

It is a cyclic number.

It is not a de Polignac number, because 1494321197 - 2¹² = 1494317101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1494324197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747160598 + 747160599.

It is an arithmetic number, because the mean of its divisors is an integer number (747160599).

Almost surely, 2^1494321197 is an apocalyptic number.

It is an amenable number.

1494321197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1494321197 is an equidigital number, since it uses as much as digits as its factorization.

1494321197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 41.

The square root of 1494321197 is about 38656.4509105531. The cubic root of 1494321197 is about 1143.2678364525.

The spelling of 1494321197 in words is "one billion, four hundred ninety-four million, three hundred twenty-one thousand, one hundred ninety-seven".