1973765147 has 4 divisors (see below), whose sum is σ = 1974688320. Its totient is φ = 1972841976.

The previous prime is 1973765137. The next prime is 1973765153. The reversal of 1973765147 is 7415673791.

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

It is a cyclic number.

It is not a de Polignac number, because 1973765147 - 2¹⁰ = 1973764123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1973765095 and 1973765104.

It is not an unprimeable number, because it can be changed into a prime (1973765137) 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, 458372 + ... + 462657.

It is an arithmetic number, because the mean of its divisors is an integer number (493672080).

Almost surely, 2^1973765147 is an apocalyptic number.

1973765147 is a deficient number, since it is larger than the sum of its proper divisors (923173).

1973765147 is an equidigital number, since it uses as much as digits as its factorization.

1973765147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923172.

The product of its digits is 1111320, while the sum is 50.

The square root of 1973765147 is about 44427.0767325513. The cubic root of 1973765147 is about 1254.3878110295.

The spelling of 1973765147 in words is "one billion, nine hundred seventy-three million, seven hundred sixty-five thousand, one hundred forty-seven".