196551437 has 6 divisors (see below), whose sum is σ = 202008618. Its totient is φ = 191237904.

The previous prime is 196551419. The next prime is 196551463. The reversal of 196551437 is 734155691.

It can be written as a sum of positive squares in 3 ways, for example, as 162282121 + 34269316 = 12739^2 + 5854^2 .

It is not a de Polignac number, because 196551437 - 2¹⁶ = 196485901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 196551394 and 196551403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196551497) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70418 + ... + 73155.

It is an arithmetic number, because the mean of its divisors is an integer number (33668103).

Almost surely, 2^196551437 is an apocalyptic number.

It is an amenable number.

196551437 is a deficient number, since it is larger than the sum of its proper divisors (5457181).

196551437 is an equidigital number, since it uses as much as digits as its factorization.

196551437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143647 (or 143610 counting only the distinct ones).

The product of its digits is 113400, while the sum is 41.

The square root of 196551437 is about 14019.6803458567. The cubic root of 196551437 is about 581.4228216669.

The spelling of 196551437 in words is "one hundred ninety-six million, five hundred fifty-one thousand, four hundred thirty-seven".