1964765147 has 2 divisors, whose sum is σ = 1964765148. Its totient is φ = 1964765146.

The previous prime is 1964765093. The next prime is 1964765149. The reversal of 1964765147 is 7415674691.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7415674691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1964765147 - 2⁸ = 1964764891 is a prime.

Together with 1964765149, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1964765095 and 1964765104.

It is not a weakly prime, because it can be changed into another prime (1964765149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982382573 + 982382574.

It is an arithmetic number, because the mean of its divisors is an integer number (982382574).

Almost surely, 2^1964765147 is an apocalyptic number.

1964765147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1964765147 is an equidigital number, since it uses as much as digits as its factorization.

1964765147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 50.

The square root of 1964765147 is about 44325.6714218747. The cubic root of 1964765147 is about 1252.4783144785.

The spelling of 1964765147 in words is "one billion, nine hundred sixty-four million, seven hundred sixty-five thousand, one hundred forty-seven".