1995057 has 16 divisors (see below), whose sum is σ = 3112000. Its totient is φ = 1259712.

The previous prime is 1995031. The next prime is 1995061. The reversal of 1995057 is 7505991.

It is a happy number.

It is not a de Polignac number, because 1995057 - 2¹⁰ = 1994033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1995857) 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 15 ways as a sum of consecutive naturals, for example, 1432 + ... + 2457.

It is an arithmetic number, because the mean of its divisors is an integer number (194500).

2^1995057 is an apocalyptic number.

It is an amenable number.

1995057 is a deficient number, since it is larger than the sum of its proper divisors (1116943).

1995057 is a wasteful number, since it uses less digits than its factorization.

1995057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3917 (or 3911 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 36.

The square root of 1995057 is about 1412.4648668197. The cubic root of 1995057 is about 125.8882228650. Note that the first 3 decimals are identical.

The spelling of 1995057 in words is "one million, nine hundred ninety-five thousand, fifty-seven".