195557041 has 2 divisors, whose sum is σ = 195557042. Its totient is φ = 195557040.

The previous prime is 195557029. The next prime is 195557081. The reversal of 195557041 is 140755591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109809441 + 85747600 = 10479^2 + 9260^2 .

It is a cyclic number.

It is not a de Polignac number, because 195557041 - 2¹³ = 195548849 is a prime.

It is not a weakly prime, because it can be changed into another prime (195557081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97778520 + 97778521.

It is an arithmetic number, because the mean of its divisors is an integer number (97778521).

Almost surely, 2^195557041 is an apocalyptic number.

It is an amenable number.

195557041 is a deficient number, since it is larger than the sum of its proper divisors (1).

195557041 is an equidigital number, since it uses as much as digits as its factorization.

195557041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 37.

The square root of 195557041 is about 13984.1710873401. The cubic root of 195557041 is about 580.4406490843.

It can be divided in two parts, 1955 and 57041, that added together give a triangular number (58996 = T₃₄₃).

The spelling of 195557041 in words is "one hundred ninety-five million, five hundred fifty-seven thousand, forty-one".