1964132069 has 4 divisors (see below), whose sum is σ = 2027491200. Its totient is φ = 1900772940.

The previous prime is 1964132063. The next prime is 1964132083. The reversal of 1964132069 is 9602314691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1964132069 - 2¹² = 1964127973 is a prime.

It is a super-2 number, since 2×1964132069² = 7715629568948441522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964132063) 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, 31679519 + ... + 31679580.

It is an arithmetic number, because the mean of its divisors is an integer number (506872800).

Almost surely, 2^1964132069 is an apocalyptic number.

It is an amenable number.

1964132069 is a deficient number, since it is larger than the sum of its proper divisors (63359131).

1964132069 is an equidigital number, since it uses as much as digits as its factorization.

1964132069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63359130.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 1964132069 is about 44318.5296349055. The cubic root of 1964132069 is about 1252.3437773395.

The spelling of 1964132069 in words is "one billion, nine hundred sixty-four million, one hundred thirty-two thousand, sixty-nine".