196088257 has 4 divisors (see below), whose sum is σ = 196428676. Its totient is φ = 195747840.

The previous prime is 196088219. The next prime is 196088261. The reversal of 196088257 is 752880691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 752880691 = 2939 ⋅256169.

It can be written as a sum of positive squares in 2 ways, for example, as 187799616 + 8288641 = 13704^2 + 2879^2 .

It is a cyclic number.

It is not a de Polignac number, because 196088257 - 2⁷ = 196088129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196088657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169344 + ... + 170497.

It is an arithmetic number, because the mean of its divisors is an integer number (49107169).

Almost surely, 2^196088257 is an apocalyptic number.

It is an amenable number.

196088257 is a deficient number, since it is larger than the sum of its proper divisors (340419).

196088257 is an equidigital number, since it uses as much as digits as its factorization.

196088257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340418.

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 196088257 is about 14003.1516809610. The cubic root of 196088257 is about 580.9657483686.

The spelling of 196088257 in words is "one hundred ninety-six million, eighty-eight thousand, two hundred fifty-seven".