1920964601 has 2 divisors, whose sum is σ = 1920964602. Its totient is φ = 1920964600.

The previous prime is 1920964597. The next prime is 1920964621. The reversal of 1920964601 is 1064690291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1840324201 + 80640400 = 42899^2 + 8980^2 .

It is a cyclic number.

It is not a de Polignac number, because 1920964601 - 2² = 1920964597 is a prime.

It is not a weakly prime, because it can be changed into another prime (1920964621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 960482300 + 960482301.

It is an arithmetic number, because the mean of its divisors is an integer number (960482301).

Almost surely, 2^1920964601 is an apocalyptic number.

It is an amenable number.

1920964601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1920964601 is an equidigital number, since it uses as much as digits as its factorization.

1920964601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1920964601 is about 43828.8101709367. The cubic root of 1920964601 is about 1243.1011091724.

The spelling of 1920964601 in words is "one billion, nine hundred twenty million, nine hundred sixty-four thousand, six hundred one".