1960181 has 4 divisors (see below), whose sum is σ = 1963500. Its totient is φ = 1956864.

The previous prime is 1960177. The next prime is 1960183. The reversal of 1960181 is 1810691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1810691 = 743 ⋅2437.

It can be written as a sum of positive squares in 2 ways, for example, as 1359556 + 600625 = 1166^2 + 775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1960181 - 2² = 1960177 is a prime.

It is a super-2 number, since 2×1960181² = 7684619105522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1960181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1960183) 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, 506 + ... + 2043.

It is an arithmetic number, because the mean of its divisors is an integer number (490875).

2^1960181 is an apocalyptic number.

It is an amenable number.

1960181 is a deficient number, since it is larger than the sum of its proper divisors (3319).

1960181 is an equidigital number, since it uses as much as digits as its factorization.

1960181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 1960181 is about 1400.0646413648. The cubic root of 1960181 is about 125.1503470935.

The spelling of 1960181 in words is "one million, nine hundred sixty thousand, one hundred eighty-one".