1401901 has 4 divisors (see below), whose sum is σ = 1405404. Its totient is φ = 1398400.

The previous prime is 1401857. The next prime is 1401937. The reversal of 1401901 is 1091041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1091041 = 7 ⋅155863.

It can be written as a sum of positive squares in 2 ways, for example, as 1010025 + 391876 = 1005^2 + 626^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401901 - 2¹⁵ = 1369133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060 + ... + 1981.

It is an arithmetic number, because the mean of its divisors is an integer number (351351).

2^1401901 is an apocalyptic number.

It is an amenable number.

1401901 is a deficient number, since it is larger than the sum of its proper divisors (3503).

1401901 is an equidigital number, since it uses as much as digits as its factorization.

1401901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1401901 is about 1184.0190032259. The cubic root of 1401901 is about 111.9195052999.

Adding to 1401901 its reverse (1091041), we get a palindrome (2492942).

The spelling of 1401901 in words is "one million, four hundred one thousand, nine hundred one".