2251031 has 2 divisors, whose sum is σ = 2251032. Its totient is φ = 2251030.

The previous prime is 2251001. The next prime is 2251049. The reversal of 2251031 is 1301522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2251031 - 2¹⁸ = 1988887 is a prime.

It is a super-2 number, since 2×2251031² = 10134281125922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2250997 and 2251015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2251001) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125515 + 1125516.

It is an arithmetic number, because the mean of its divisors is an integer number (1125516).

2^2251031 is an apocalyptic number.

2251031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251031 is an equidigital number, since it uses as much as digits as its factorization.

2251031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2251031 is about 1500.3436273068. The cubic root of 2251031 is about 131.0570813533.

Adding to 2251031 its reverse (1301522), we get a palindrome (3552553).

The spelling of 2251031 in words is "two million, two hundred fifty-one thousand, thirty-one".