196226145 has 24 divisors (see below), whose sum is σ = 352724736. Its totient is φ = 104653296.

The previous prime is 196226143. The next prime is 196226201. The reversal of 196226145 is 541622691.

196226145 is a `hidden beast` number, since 19 + 6 + 22 + 614 + 5 = 666.

It is not a de Polignac number, because 196226145 - 2¹ = 196226143 is a prime.

It is a super-2 number, since 2×196226145² = 77009399963122050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (196226143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79537 + ... + 81966.

It is an arithmetic number, because the mean of its divisors is an integer number (14696864).

Almost surely, 2^196226145 is an apocalyptic number.

196226145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

196226145 is a deficient number, since it is larger than the sum of its proper divisors (156498591).

196226145 is an equidigital number, since it uses as much as digits as its factorization.

196226145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161523 (or 161511 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 196226145 is about 14008.0742787865. The cubic root of 196226145 is about 581.1018935862.

The spelling of 196226145 in words is "one hundred ninety-six million, two hundred twenty-six thousand, one hundred forty-five".