309147196 has 24 divisors (see below), whose sum is σ = 549581760. Its totient is φ = 152140032.

The previous prime is 309147191. The next prime is 309147199. The reversal of 309147196 is 691741903.

309147196 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

309147196 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309147191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81085 + ... + 84811.

It is an arithmetic number, because the mean of its divisors is an integer number (22899240).

Almost surely, 2^309147196 is an apocalyptic number.

It is an amenable number.

309147196 is a deficient number, since it is larger than the sum of its proper divisors (240434564).

309147196 is a wasteful number, since it uses less digits than its factorization.

309147196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4053 (or 4051 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 309147196 is about 17582.5821766884. The cubic root of 309147196 is about 676.1687632288.

The spelling of 309147196 in words is "three hundred nine million, one hundred forty-seven thousand, one hundred ninety-six".