1965012953 has 2 divisors, whose sum is σ = 1965012954. Its totient is φ = 1965012952.

The previous prime is 1965012919. The next prime is 1965012971. The reversal of 1965012953 is 3592105691.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1930108489 + 34904464 = 43933^2 + 5908^2 .

It is a cyclic number.

It is not a de Polignac number, because 1965012953 - 2²² = 1960818649 is a prime.

It is a super-2 number, since 2×1965012953² = 7722551810915560418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1965012953.

It is not a weakly prime, because it can be changed into another prime (1965012913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982506476 + 982506477.

It is an arithmetic number, because the mean of its divisors is an integer number (982506477).

Almost surely, 2^1965012953 is an apocalyptic number.

It is an amenable number.

1965012953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1965012953 is an equidigital number, since it uses as much as digits as its factorization.

1965012953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 1965012953 is about 44328.4666213484. The cubic root of 1965012953 is about 1252.5309685399.

The spelling of 1965012953 in words is "one billion, nine hundred sixty-five million, twelve thousand, nine hundred fifty-three".