2851401 has 8 divisors (see below), whose sum is σ = 4345024. Its totient is φ = 1629360.

The previous prime is 2851399. The next prime is 2851403. The reversal of 2851401 is 1041582.

It is an interprime number because it is at equal distance from previous prime (2851399) and next prime (2851403).

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

It is not a de Polignac number, because 2851401 - 2¹ = 2851399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 135781 = 2851401 / (2 + 8 + 5 + 1 + 4 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2851403) 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, 67870 + ... + 67911.

It is an arithmetic number, because the mean of its divisors is an integer number (543128).

2^2851401 is an apocalyptic number.

2851401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2851401 is a deficient number, since it is larger than the sum of its proper divisors (1493623).

2851401 is a wasteful number, since it uses less digits than its factorization.

2851401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135791.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 2851401 is about 1688.6091910208. The cubic root of 2851401 is about 141.8032221161.

Adding to 2851401 its reverse (1041582), we get a palindrome (3892983).

The spelling of 2851401 in words is "two million, eight hundred fifty-one thousand, four hundred one".