196537953 has 4 divisors (see below), whose sum is σ = 262050608. Its totient is φ = 131025300.

The previous prime is 196537949. The next prime is 196537963. The reversal of 196537953 is 359735691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 196537953 - 2² = 196537949 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196537903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32756323 + ... + 32756328.

It is an arithmetic number, because the mean of its divisors is an integer number (65512652).

Almost surely, 2^196537953 is an apocalyptic number.

It is an amenable number.

196537953 is a deficient number, since it is larger than the sum of its proper divisors (65512655).

196537953 is an equidigital number, since it uses as much as digits as its factorization.

196537953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65512654.

The product of its digits is 765450, while the sum is 48.

The square root of 196537953 is about 14019.1994421936. The cubic root of 196537953 is about 581.4095255975.

The spelling of 196537953 in words is "one hundred ninety-six million, five hundred thirty-seven thousand, nine hundred fifty-three".