103557161 has 2 divisors, whose sum is σ = 103557162. Its totient is φ = 103557160.

The previous prime is 103557151. The next prime is 103557169. The reversal of 103557161 is 161755301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102414400 + 1142761 = 10120^2 + 1069^2 .

It is a cyclic number.

It is not a de Polignac number, because 103557161 - 2¹⁴ = 103540777 is a prime.

It is a super-3 number, since 3×103557161³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103557169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51778580 + 51778581.

It is an arithmetic number, because the mean of its divisors is an integer number (51778581).

Almost surely, 2^103557161 is an apocalyptic number.

It is an amenable number.

103557161 is a deficient number, since it is larger than the sum of its proper divisors (1).

103557161 is an equidigital number, since it uses as much as digits as its factorization.

103557161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 103557161 is about 10176.3038967987. The cubic root of 103557161 is about 469.5985118197.

The spelling of 103557161 in words is "one hundred three million, five hundred fifty-seven thousand, one hundred sixty-one".