1964749153 has 2 divisors, whose sum is σ = 1964749154. Its totient is φ = 1964749152.

The previous prime is 1964749051. The next prime is 1964749223. The reversal of 1964749153 is 3519474691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1882084689 + 82664464 = 43383^2 + 9092^2 .

It is a cyclic number.

It is not a de Polignac number, because 1964749153 - 2²⁹ = 1427878241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1964749097 and 1964749106.

It is not a weakly prime, because it can be changed into another prime (1964779153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982374576 + 982374577.

It is an arithmetic number, because the mean of its divisors is an integer number (982374577).

Almost surely, 2^1964749153 is an apocalyptic number.

It is an amenable number.

1964749153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1964749153 is an equidigital number, since it uses as much as digits as its factorization.

1964749153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 1964749153 is about 44325.4910068687. The cubic root of 1964749153 is about 1252.4749159057.

The spelling of 1964749153 in words is "one billion, nine hundred sixty-four million, seven hundred forty-nine thousand, one hundred fifty-three".