2256149 has 16 divisors (see below), whose sum is σ = 2743296. Its totient is φ = 1814400.

The previous prime is 2256131. The next prime is 2256169. The reversal of 2256149 is 9416522.

It is a happy number.

It is not a de Polignac number, because 2256149 - 2¹⁶ = 2190613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7889 + ... + 8169.

It is an arithmetic number, because the mean of its divisors is an integer number (171456).

2^2256149 is an apocalyptic number.

It is an amenable number.

2256149 is a deficient number, since it is larger than the sum of its proper divisors (487147).

2256149 is a wasteful number, since it uses less digits than its factorization.

2256149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356.

The product of its digits is 4320, while the sum is 29.

The square root of 2256149 is about 1502.0482681991. The cubic root of 2256149 is about 131.1563310510.

The spelling of 2256149 in words is "two million, two hundred fifty-six thousand, one hundred forty-nine".