3051421 has 4 divisors (see below), whose sum is σ = 3103200. Its totient is φ = 2999644.

The previous prime is 3051397. The next prime is 3051431. The reversal of 3051421 is 1241503.

3051421 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1241503 = 97 ⋅12799.

It is a cyclic number.

It is not a de Polignac number, because 3051421 - 2¹⁷ = 2920349 is a prime.

It is a super-2 number, since 2×3051421² = 18622340238482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3051395 and 3051404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3051431) 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, 25801 + ... + 25918.

It is an arithmetic number, because the mean of its divisors is an integer number (775800).

Almost surely, 2^3051421 is an apocalyptic number.

It is an amenable number.

3051421 is a deficient number, since it is larger than the sum of its proper divisors (51779).

3051421 is an equidigital number, since it uses as much as digits as its factorization.

3051421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51778.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 3051421 is about 1746.8317033990. The cubic root of 3051421 is about 145.0443146360.

Adding to 3051421 its reverse (1241503), we get a palindrome (4292924).

The spelling of 3051421 in words is "three million, fifty-one thousand, four hundred twenty-one".