1965057 has 8 divisors (see below), whose sum is σ = 2681184. Its totient is φ = 1279488.

The previous prime is 1964987. The next prime is 1965077. The reversal of 1965057 is 7505691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1965057 - 2⁸ = 1964801 is a prime.

It is a super-2 number, since 2×1965057² = 7722898026498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1965077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7488 + ... + 7745.

It is an arithmetic number, because the mean of its divisors is an integer number (335148).

2^1965057 is an apocalyptic number.

It is an amenable number.

1965057 is a deficient number, since it is larger than the sum of its proper divisors (716127).

1965057 is a wasteful number, since it uses less digits than its factorization.

1965057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15279.

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 1965057 is about 1401.8049079669. The cubic root of 1965057 is about 125.2540327226.

It can be divided in two parts, 196 and 5057, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 1965057 in words is "one million, nine hundred sixty-five thousand, fifty-seven".