197054357 has 2 divisors, whose sum is σ = 197054358. Its totient is φ = 197054356.

The previous prime is 197054353. The next prime is 197054393. The reversal of 197054357 is 753450791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149181796 + 47872561 = 12214^2 + 6919^2 .

It is an emirp because it is prime and its reverse (753450791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197054357 - 2² = 197054353 is a prime.

It is a super-2 number, since 2×197054357² = 77660839225366898, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197054353) 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, 98527178 + 98527179.

It is an arithmetic number, because the mean of its divisors is an integer number (98527179).

Almost surely, 2^197054357 is an apocalyptic number.

It is an amenable number.

197054357 is a deficient number, since it is larger than the sum of its proper divisors (1).

197054357 is an equidigital number, since it uses as much as digits as its factorization.

197054357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 197054357 is about 14037.6051020108. The cubic root of 197054357 is about 581.9182986205.

The spelling of 197054357 in words is "one hundred ninety-seven million, fifty-four thousand, three hundred fifty-seven".