1901365 has 8 divisors (see below), whose sum is σ = 2415960. Its totient is φ = 1431552.

The previous prime is 1901363. The next prime is 1901369. The reversal of 1901365 is 5631091.

It can be written as a sum of positive squares in 4 ways, for example, as 358801 + 1542564 = 599^2 + 1242^2 .

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 1901365 - 2¹ = 1901363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1901363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11100 + ... + 11269.

It is an arithmetic number, because the mean of its divisors is an integer number (301995).

2^1901365 is an apocalyptic number.

It is an amenable number.

1901365 is a deficient number, since it is larger than the sum of its proper divisors (514595).

1901365 is a wasteful number, since it uses less digits than its factorization.

1901365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22391.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 1901365 is about 1378.8999238523. The cubic root of 1901365 is about 123.8858861714.

The spelling of 1901365 in words is "one million, nine hundred one thousand, three hundred sixty-five".