245544193 has 2 divisors, whose sum is σ = 245544194. Its totient is φ = 245544192.

The previous prime is 245544161. The next prime is 245544227. The reversal of 245544193 is 391445542.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224310529 + 21233664 = 14977^2 + 4608^2 .

It is a cyclic number.

It is not a de Polignac number, because 245544193 - 2⁵ = 245544161 is a prime.

It is not a weakly prime, because it can be changed into another prime (245544133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122772096 + 122772097.

It is an arithmetic number, because the mean of its divisors is an integer number (122772097).

Almost surely, 2^245544193 is an apocalyptic number.

It is an amenable number.

245544193 is a deficient number, since it is larger than the sum of its proper divisors (1).

245544193 is an equidigital number, since it uses as much as digits as its factorization.

245544193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 37.

The square root of 245544193 is about 15669.8498078316. The cubic root of 245544193 is about 626.1954234427.

It can be divided in two parts, 2455 and 44193, that multiplied together give a triangular number (108493815 = T₁₄₇₃₀).

The spelling of 245544193 in words is "two hundred forty-five million, five hundred forty-four thousand, one hundred ninety-three".