1961212 has 36 divisors (see below), whose sum is σ = 3950856. Its totient is φ = 844480.

The previous prime is 1961173. The next prime is 1961213. The reversal of 1961212 is 2121691.

It is a Harshad number since it is a multiple of its sum of digits (22).

1961212 is a modest number, since divided by 1212 gives 196 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36978 + ... + 37030.

It is an arithmetic number, because the mean of its divisors is an integer number (109746).

2^1961212 is an apocalyptic number.

It is an amenable number.

1961212 is an abundant number, since it is smaller than the sum of its proper divisors (1989644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1961212 is a wasteful number, since it uses less digits than its factorization.

1961212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 95 counting only the distinct ones).

The product of its digits is 216, while the sum is 22.

The square root of 1961212 is about 1400.4327902474. The cubic root of 1961212 is about 125.1722851003.

Subtracting from 1961212 its sum of digits (22), we obtain a triangular number (1961190 = T₁₉₈₀).

The spelling of 1961212 in words is "one million, nine hundred sixty-one thousand, two hundred twelve".