2149351 has 2 divisors, whose sum is σ = 2149352. Its totient is φ = 2149350.

The previous prime is 2149349. The next prime is 2149379. The reversal of 2149351 is 1539412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2149351 - 2¹ = 2149349 is a prime.

Together with 2149349, it forms a pair of twin primes.

2149351 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2149331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074675 + 1074676.

It is an arithmetic number, because the mean of its divisors is an integer number (1074676).

2^2149351 is an apocalyptic number.

2149351 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149351 is an equidigital number, since it uses as much as digits as its factorization.

2149351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 25.

The square root of 2149351 is about 1466.0665059949. The cubic root of 2149351 is about 129.0533000905.

It can be divided in two parts, 2149 and 351, that added together give a square (2500 = 50²).

The spelling of 2149351 in words is "two million, one hundred forty-nine thousand, three hundred fifty-one".