1463720197 has 2 divisors, whose sum is σ = 1463720198. Its totient is φ = 1463720196.

The previous prime is 1463720177. The next prime is 1463720221. The reversal of 1463720197 is 7910273641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1392334596 + 71385601 = 37314^2 + 8449^2 .

It is a cyclic number.

It is not a de Polignac number, because 1463720197 - 2¹¹ = 1463718149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1463720117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 731860098 + 731860099.

It is an arithmetic number, because the mean of its divisors is an integer number (731860099).

Almost surely, 2^1463720197 is an apocalyptic number.

It is an amenable number.

1463720197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1463720197 is an equidigital number, since it uses as much as digits as its factorization.

1463720197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 1463720197 is about 38258.5963804215. The cubic root of 1463720197 is about 1135.4099309110.

The spelling of 1463720197 in words is "one billion, four hundred sixty-three million, seven hundred twenty thousand, one hundred ninety-seven".