1495194997 has 2 divisors, whose sum is σ = 1495194998. Its totient is φ = 1495194996.

The previous prime is 1495194991. The next prime is 1495195019. The reversal of 1495194997 is 7994915941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 960938001 + 534256996 = 30999^2 + 23114^2 .

It is a cyclic number.

It is not a de Polignac number, because 1495194997 - 2³ = 1495194989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1495194991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747597498 + 747597499.

It is an arithmetic number, because the mean of its divisors is an integer number (747597499).

Almost surely, 2^1495194997 is an apocalyptic number.

It is an amenable number.

1495194997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1495194997 is an equidigital number, since it uses as much as digits as its factorization.

1495194997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 58.

The square root of 1495194997 is about 38667.7513827737. The cubic root of 1495194997 is about 1143.4906338856.

The spelling of 1495194997 in words is "one billion, four hundred ninety-five million, one hundred ninety-four thousand, nine hundred ninety-seven".