1975081 has 4 divisors (see below), whose sum is σ = 2017152. Its totient is φ = 1933012.

The previous prime is 1975073. The next prime is 1975091. The reversal of 1975081 is 1805791.

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 1975081 - 2³ = 1975073 is a prime.

It is a super-2 number, since 2×1975081² = 7801889913122, which contains 22 as substring.

It is a Duffinian number.

1975081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1975021) 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, 20965 + ... + 21058.

It is an arithmetic number, because the mean of its divisors is an integer number (504288).

2^1975081 is an apocalyptic number.

It is an amenable number.

1975081 is a deficient number, since it is larger than the sum of its proper divisors (42071).

1975081 is an equidigital number, since it uses as much as digits as its factorization.

1975081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42070.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 1975081 is about 1405.3757504668. The cubic root of 1975081 is about 125.4666503980.

The spelling of 1975081 in words is "one million, nine hundred seventy-five thousand, eighty-one".