1901012 has 12 divisors (see below), whose sum is σ = 3352020. Its totient is φ = 943296.

The previous prime is 1900981. The next prime is 1901021. The reversal of 1901012 is 2101091.

It can be written as a sum of positive squares in 2 ways, for example, as 470596 + 1430416 = 686^2 + 1196^2 .

It is a super-2 number, since 2×1901012² = 7227693248288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187 + ... + 2282.

It is an arithmetic number, because the mean of its divisors is an integer number (279335).

2^1901012 is an apocalyptic number.

It is an amenable number.

1901012 is a deficient number, since it is larger than the sum of its proper divisors (1451008).

1901012 is a wasteful number, since it uses less digits than its factorization.

1901012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610 (or 3608 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1901012 is about 1378.7719173235. The cubic root of 1901012 is about 123.8782189736.

The spelling of 1901012 in words is "one million, nine hundred one thousand, twelve".