1965527713 has 4 divisors (see below), whose sum is σ = 2068976560. Its totient is φ = 1862078868.

The previous prime is 1965527699. The next prime is 1965527717. The reversal of 1965527713 is 3177255691.

It is a happy number.

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 1965527713 - 2²¹ = 1963430561 is a prime.

It is a super-3 number, since 3×1965527713³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1965527717) 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, 51724395 + ... + 51724432.

It is an arithmetic number, because the mean of its divisors is an integer number (517244140).

Almost surely, 2^1965527713 is an apocalyptic number.

It is an amenable number.

1965527713 is a deficient number, since it is larger than the sum of its proper divisors (103448847).

1965527713 is a wasteful number, since it uses less digits than its factorization.

1965527713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103448846.

The product of its digits is 396900, while the sum is 46.

The square root of 1965527713 is about 44334.2724424344. The cubic root of 1965527713 is about 1252.6403311013.

The spelling of 1965527713 in words is "one billion, nine hundred sixty-five million, five hundred twenty-seven thousand, seven hundred thirteen".