2251358 has 4 divisors (see below), whose sum is σ = 3377040. Its totient is φ = 1125678.

The previous prime is 2251349. The next prime is 2251369. The reversal of 2251358 is 8531522.

2251358 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2251358² = 10137225688328, which contains 22 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁴ + 2¹⁴ + 5 + 1 + 3⁹ + 5⁹ + 8⁶ .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562838 + ... + 562841.

It is an arithmetic number, because the mean of its divisors is an integer number (844260).

2^2251358 is an apocalyptic number.

2251358 is a deficient number, since it is larger than the sum of its proper divisors (1125682).

2251358 is a wasteful number, since it uses less digits than its factorization.

2251358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125681.

The product of its digits is 2400, while the sum is 26.

The square root of 2251358 is about 1500.4525983849. The cubic root of 2251358 is about 131.0634271256.

The spelling of 2251358 in words is "two million, two hundred fifty-one thousand, three hundred fifty-eight".