1961101 has 8 divisors (see below), whose sum is σ = 2043360. Its totient is φ = 1880592.

The previous prime is 1961093. The next prime is 1961107. The reversal of 1961101 is 1011691.

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

It is a cyclic number.

It is not a de Polignac number, because 1961101 - 2³ = 1961093 is a prime.

It is a super-4 number, since 4×1961101⁴ (a number of 26 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2151 + ... + 2923.

It is an arithmetic number, because the mean of its divisors is an integer number (255420).

2^1961101 is an apocalyptic number.

It is an amenable number.

1961101 is a deficient number, since it is larger than the sum of its proper divisors (82259).

1961101 is an equidigital number, since it uses as much as digits as its factorization.

1961101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 1961101 is about 1400.3931590807. The cubic root of 1961101 is about 125.1699235698.

Adding to 1961101 its reverse (1011691), we get a palindrome (2972792).

The spelling of 1961101 in words is "one million, nine hundred sixty-one thousand, one hundred one".