196753261 has 4 divisors (see below), whose sum is σ = 196801372. Its totient is φ = 196705152.

The previous prime is 196753253. The next prime is 196753307. The reversal of 196753261 is 162357691.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 585225 + 196168036 = 765^2 + 14006^2 .

It is a cyclic number.

It is not a de Polignac number, because 196753261 - 2³ = 196753253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196753231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17286 + ... + 26311.

It is an arithmetic number, because the mean of its divisors is an integer number (49200343).

Almost surely, 2^196753261 is an apocalyptic number.

It is an amenable number.

196753261 is a deficient number, since it is larger than the sum of its proper divisors (48111).

196753261 is an equidigital number, since it uses as much as digits as its factorization.

196753261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48110.

The product of its digits is 68040, while the sum is 40.

The square root of 196753261 is about 14026.8763807200. The cubic root of 196753261 is about 581.6217601567.

The spelling of 196753261 in words is "one hundred ninety-six million, seven hundred fifty-three thousand, two hundred sixty-one".