1901485 has 8 divisors (see below), whose sum is σ = 2307960. Its totient is φ = 1503744.

The previous prime is 1901461. The next prime is 1901489. The reversal of 1901485 is 5841091.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2601 + 1898884 = 51^2 + 1378^2 .

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

It is not a de Polignac number, because 1901485 - 2⁷ = 1901357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1901489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1692 + ... + 2581.

It is an arithmetic number, because the mean of its divisors is an integer number (288495).

2^1901485 is an apocalyptic number.

It is an amenable number.

1901485 is a deficient number, since it is larger than the sum of its proper divisors (406475).

1901485 is an equidigital number, since it uses as much as digits as its factorization.

1901485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1901485 is about 1378.9434361133. The cubic root of 1901485 is about 123.8884923681. Note that the first 3 decimals are identical.

The spelling of 1901485 in words is "one million, nine hundred one thousand, four hundred eighty-five".