197103553 has 2 divisors, whose sum is σ = 197103554. Its totient is φ = 197103552.

The previous prime is 197103541. The next prime is 197103623. The reversal of 197103553 is 355301791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196476289 + 627264 = 14017^2 + 792^2 .

It is a cyclic number.

It is not a de Polignac number, because 197103553 - 2⁵ = 197103521 is a prime.

It is not a weakly prime, because it can be changed into another prime (197107553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98551776 + 98551777.

It is an arithmetic number, because the mean of its divisors is an integer number (98551777).

Almost surely, 2^197103553 is an apocalyptic number.

It is an amenable number.

197103553 is a deficient number, since it is larger than the sum of its proper divisors (1).

197103553 is an equidigital number, since it uses as much as digits as its factorization.

197103553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14175, while the sum is 34.

The square root of 197103553 is about 14039.3572858589. The cubic root of 197103553 is about 581.9667212503.

The spelling of 197103553 in words is "one hundred ninety-seven million, one hundred three thousand, five hundred fifty-three".