397343153 has 2 divisors, whose sum is σ = 397343154. Its totient is φ = 397343152.

The previous prime is 397343129. The next prime is 397343179. The reversal of 397343153 is 351343793.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392356864 + 4986289 = 19808^2 + 2233^2 .

It is an emirp because it is prime and its reverse (351343793) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397343153 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (397343053) 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, 198671576 + 198671577.

It is an arithmetic number, because the mean of its divisors is an integer number (198671577).

Almost surely, 2^397343153 is an apocalyptic number.

It is an amenable number.

397343153 is a deficient number, since it is larger than the sum of its proper divisors (1).

397343153 is an equidigital number, since it uses as much as digits as its factorization.

397343153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 38.

The square root of 397343153 is about 19933.4681628662. The cubic root of 397343153 is about 735.1713565332.

The spelling of 397343153 in words is "three hundred ninety-seven million, three hundred forty-three thousand, one hundred fifty-three".