197153941 has 2 divisors, whose sum is σ = 197153942. Its totient is φ = 197153940.

The previous prime is 197153933. The next prime is 197154031. The reversal of 197153941 is 149351791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187827025 + 9326916 = 13705^2 + 3054^2 .

It is a cyclic number.

It is not a de Polignac number, because 197153941 - 2³ = 197153933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197153894 and 197153903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197153921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98576970 + 98576971.

It is an arithmetic number, because the mean of its divisors is an integer number (98576971).

Almost surely, 2^197153941 is an apocalyptic number.

It is an amenable number.

197153941 is a deficient number, since it is larger than the sum of its proper divisors (1).

197153941 is an equidigital number, since it uses as much as digits as its factorization.

197153941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 40.

The square root of 197153941 is about 14041.1516977775. The cubic root of 197153941 is about 582.0163087899.

The spelling of 197153941 in words is "one hundred ninety-seven million, one hundred fifty-three thousand, nine hundred forty-one".